_— mamma ' ENCYCLOPEDIA BRITANNICA SEVENTH EDITION. 'T THE ENCYCLOPAEDIA BRITANNICA OR DICTIONARY OF ARTS, SCIENCES, AND GENERAL LITERATURE. SEVENTH EDITION, WITH PRELIMINARY DISSERTATIONS ON THE HISTORY OF THE SCIENCES, AND OTHER EXTENSIVE IMPROVEMENTS AND ADDITIONS; INCLUDING THE LATE SUPPLEMENT, A GENERAL INDEX, AND NUMEROUS ENGRAVINGS. VOLUME VII. ADAM AND CHARLES BLACK, EDINBURGH; M.DCCC.XLII. ENCYCLOPAEDIA BRITANNICA C L O Clodius I^LODIUS, Publius, a Roman descended of an illus- 1 || trious family, who rendered himself famous for his Cloghna- licentiousness, avarice, and ambition. He introduced him- kilty. self in women’s clothes into the house of Julius Caesar, whilst Pompeia, Caesar’s wife, of whom he was enamoured, was celebrating the mysteries of the Bona Dea, where no man was permitted to appear. He was publicly accused of this violation of human and divine laws; but he got himself chosen tribune, and by this means screened him¬ self from justice. He descended from a patrician into a plebeian family in order to become tribune. He was such an enemy to Cato that he got him appointed with praeto¬ rian power to command an expedition against Ptolemy, king of Cyprus, that by the difficulty of the campaign he might ruin his reputation, and destroy his interest at Rome during his absence. Cato, however, by his uncom¬ mon success, frustrated the designs of Clodius. This man was also an inveterate enemy of Cicero, and by his influ¬ ence got him banished from Rome, partly on pretence that he had punished with death and without trial the adhe¬ rents of Catiline. He wreaked his vengeance upon Cice¬ ro’s house, which he burnt, and set all his goods to sale; but, to his great mortification, no one offiered to buy them. In spite of Clodius, Cicero was recalled, and all his goods were restored to him. Clodius was some time afterwards • murdered in an accidental rencontre by Milo, whose de¬ fence Cicero undertook, and wrote, but did not pronounce, the celebrated oration joro Milone, which is considered as his masterpiece. CLOEBURY-Mortimer, a market-town of the hun¬ dred of Stoddesden, in Shropshire, 137 miles distant from London. It is situated on the river Cleme, near the Clie Hills. The market is held on Thursday. The inhabit¬ ants amounted in 1821 to 1602, and in 1831 to 1716. CLOGHER, an episcopal town of Ireland, in the coun¬ ty of Tyrone, and province of Ulster. In a very early age an abbey of regular canons, dedicated to the Virgin Mary, was founded here. This was once a place of some conse¬ quence, but there is nothing about it now which entitles it to its former appellation of city. It is distant about 105 miles north-west of Dublin. CLOGHNAKILTY, or Clonakilty, a market, post, and fair-town of Ireland, in the county of Cork. It is in a VOL. VII. C L O rapid state of improvement, the annual value of sales of Cloister linen and yarn effected here amounting to upwards of II £30,000. There are here a permanent barrack, an endowed Clonmell. classical school, two subscription and two endowed poor- schools. It is distant 198 miles south-west from Dublin. The population amounts to 4033. CLOISTER, a habitation surrounded with walls, and in¬ habited by canons or religious persons. In a more general sense, cloister is used for a monastery of religious persons of either sex. In a more restricted sense, cloister is used for the principal part of a regular monastery, consisting of a square built around, which is ordinarily between the church, the chapter-house, and the refectory, and over which is the dormitory. The cloisters served for several purposes in the ancient monasteries. Petrus Blesensis ob¬ serves that it was there the monks held their lectures. The lecture of morality was at the north side, next the church ; the school was on the west, and the chapter-house on the east; while spiritual meditation, and the like, were reserved for the church. Lanfranc observes that the pro¬ per use of the cloister was for the monks to meet in and converse together, at certain hours of the day. The form of the cloister was square ; and it had its name claustrum, from claudo, “ I shut or closeas being inclosed on its four sides with buildings. Hence, in architecture, a build¬ ing is still said to be in the form of a cloister when there are buildings on each of the four sides of the court. CLONES', a town of Ireland, in the county of Monagh¬ an, and province of Ulster. It is a place of considerable antiquity. An abbey for regular canons was founded here in the beginning of the sixth century. Near the town are the ruins of an abbey and chapel, two Danish raths, and one of the ancient pillar towers peculiar to Ireland. It is distant from Dublin eight-five miles north-west by north. The population amounts to 2240. CLONMELL, the assize town of the county of Tippe¬ rary, in Ireland, is situated on the river Suir, which is na¬ vigable from this town to Carrick and Waterford. This place is of considerable antiquity, and was originally pro¬ tected by walls and a castle ; but these were destroyed by Cromwell. The town consists at present of several good streets, a market-house, court-house, jail, church, Roman Catholic chapel, and other public buildings; and it has a 2 C L O C L O Cloud. Close handsome bridge of twenty arches over the Suir. The manufacture of woollens is carried on here; and there is a considerable carrying-trade of agricultural produce from this place to the sea-port of Waterford, by means of the river Suir. The celebrated Sterne wras born here. It is distant from Dublin 123 miles south-west by south. CLOSE, in Heraldry. When any bird is drawn in a coat of arms with its wings close down about it (that is, not dis¬ played), and in a standing posture, they blazon it by the word close; but if it be flying, they call it volant. Close-Hauled, in Navigation, the general arrangement or trim of a ship’s sails when she endeavours to make progress in the nearest direction possible towards that point of the compass from which the wind blows. In this manner of sailing the keel commonly makes an angle of six points with the line of the wind; but sloops and some other small vessels are said to sail almost a point nearer. All vessels, however, are supposed to make nearly a point of lee-way when close-hauled, even when they have the ad¬ vantage of a good sailing breeze and smooth water. The angle of lee-way, however, increases in proportion to the increase of the wind and sea. In this disposition of the sails they are all extended sideways on the ship, so that the wind, as it crosses the ship obliquely towards the stern from forwards, may All their cavities. But as the current of wind also enters the sails in an oblique direction, the effort of it to make the ship advance is considerably dimi¬ nished ; she will therefore make the least progress when sailing in this manner. The ship is said to be close-haul¬ ed, because at this time her tachs, or lower corners of the principal sails, are drawn close down to her side to wind¬ ward, the sheets hauled close-aft, and all the bow-lines drawn to their greatest extension, to keep the sails steady. CLOTH, in commerce, a manufacture made of wool, and woven in the loom. See Woollen Manufacture. CLOTHO, the youngest of the three Farcae, daughters of Jupiter and Themis. She was supposed to preside over the moment when men were born. She held the distaff in her hand, and spun the thread of life, whence her name xXwfciv, to spin. She was represented as wearing a crown with seven stars, and covered with a variegated robe. CLOUD, a collection of vapours suspended in the at¬ mosphere. Cause of That the clouds are formed from the aqueous vapours, the forma- which before were so closely united with the atmosphere tion of as to be invisible, is universally allowed ; but it is no easy clouds un- matter to account for the long continuance of some very opaque clouds without dissolving, or to give a reason why the vapours, when they have once begun to condense, do not continue to do so till they at last fall to the ground in the form of rain, snow, &c. The general cause of the formation of clouds, it has been supposed, is a separation of the latent heat from the water of which the vapour is composed. The consequence of this separation must be the condensation of that vapour, in some degree at least. In such case it will first appear as a smoke, mist, or fog, which, if interposed betwixt the sun and earth, will form a cloud; and the same causes continuing to act, the cloud will produce rain or snow. But though the separa¬ tion of this latent heat in a certain degree is the immedi¬ ate cause of the formation of clouds, the remote cause, or the changes produced in the atmosphere, by which such a separation may be induced, are much more difficult to be discovered. In common observation, we see that vapour is most powerfully condensed by cold substances, such as metals, water, and the like. But cold alone cannot in all cases cause the condensation of the atmospherical vapours, otherwise the nights behoved to be always foggy or cloudy, owing to the vapours raised during the day by the heat of the sun being condensed by the superior coldness of the certain. night. Great rains may happen in very warm weather, Cloud, when the union of the vapours with the atmosphere ought rather to be promoted than dissolved, if cold were the only agent in their condensation. The serenity of the atmo¬ sphere, also, in the most severe frosts, abundantly shows that some other cause besides mere heat or cold is con¬ cerned in the formation of clouds and the condensation of the atmospherical vapours. The electric fluid is now so generally admitted as an agent in all the great operations of nature, that it is no wonder to find the formation of clouds attributed to it. This has accordingly been stated by Beccaria as the cause of the formation of all clouds whatsoever, whether of thunder, rain, hail, or snow. The first, he thinks, are produced by a very great power of electricity, and the others by one more moderate. But though it is certain that all clouds, or even fogs and rain, are electrified in some degree, it still remains a question whether the clouds are formed in consequence of the vapour of which they are composed being first electrified, or whether they become electrified in consequence of its being first separated from the atmosphere, and in some measure condensed. This has not yet, as far as we know, been ascertained by the experiments of Beccaria, or of any other person ; and in¬ deed, notwithstanding the multitude of electrical discove¬ ries which have been made, there seems to be little or no foundation for ascertaining it. Electricity is known to be in many cases a promoter of evaporation ; but no experi¬ ments have as yet been brought to prove that electrified air parts with its moisture more readily than air that is not electrified: and hence, until the properties of electrified air are further investigated, it is impossible to lay down any rational theory of the formation of clouds upon this principle. But whether the clouds are produced, or, in other words, the invisible vapours floating in the atmosphere condensed so as to become visible, by means of electricity, or not, it is certain that they do contain the electric fluid in incon¬ ceivable quantities, and that many terrible and destruc¬ tive phenomena have been occasioned by clouds very highly electrified. Perhaps the most extraordinary in¬ stance of this kind on record happened in the island of Java in August 1772. On the 11th of that month, at midnight, a bright cloud was observed covering a moun¬ tain in the district called Cheribon, and at the same time several reports like those of a gun were heard. The peo¬ ple who dwelt upon the upper parts of the mountain not being able to fly fast enough, a great part of the cloud, almost three leagues in circumference, detached itself under them, and M as seen at a distance rising and falling like the waves of the sea, and emitting globes of fire so luminous that the night became as clear as day. The ef¬ fects of this phenomenon were astonishing. Every thing was destroyed for seven leagues round; the houses u^ere demolished, plantations were buried in the earth, and 2140 people lost their lives, besides 1600 head of cattle, and a vast number of horses, goats, and other animals. Another instance of a very destructive cloud, the elec¬ tric quality of which will at present scarcely be doubted, is related by Mr Brydone, in his Tour through Malta. It appeared on the 29th of October 1757. About three quar¬ ters of an hour after midnight, there was seen to the south¬ west of the city of Melita, a great black cloud, which, as it approached, changed its colour, till at last it became like a flame of fire mixed with black smoke. On its approach a dreadful noise w'as heard, which alarmed the whole city. It passed over the port, and came first on an English ship, which in an instant was torn in pieces, and nothing left but the hulk; part of the masts, sails, and cordage, were carried to a considerable distance along with the cloud. C L O Cloud. The small boats and feluccas that fell in its way. w^ere all broken to pieces and sunk. The noise increased and became more frightful. A sentinel, terrified at its approach, ran into his box ; but both he and it were lifted up and car¬ ried into the sea, where he perished. It then traversed a considerable part of the city, and laid in ruins almost every thing that stood in its way. Several houses were leyelled with the ground, and it did not leave a steeple standing in its passage. The bells of some of them, together with the spires, were carried to a considerable distance ; the roofs of the churches were demolished or beat down. It went off at the north-east point of the city, and demolishing the light-house, is said to have mounted up into the air with a frightful noise, and passed over the sea to Sicily, where it tore up some trees, and did other damage, but nothing con¬ siderable, as its fury had been mostly spent at Malta. The number of killed and wounded amounted to nearly two hun¬ dred ; and the loss of shipping, &c. w^as very considerable. The effects of thunder-storms, and the vast quantity of electricity collected in the clouds which produce these storms, are so well known, that it is superfluous to men¬ tion them. It appears, however, that even the clouds are not so highly electrified as to produce fatal effects on those who are immersed in them. It is only the dis¬ charge of part of their electricity upon such bodies as are either not electrified at all, or not so highly electrified as the cloud, that does all the mischief. We have, how¬ ever, only the following instance on record, of a person immersed in the body of a thunder-cloud. Professor Saus- sure and young Mr Jalabert, when travelling over one of the high "Alps, were caught among clouds of this kind; and, to their astonishment, found their bodies so full of electrical fire, that spontaneous flashes darted from their fingers with a crackling noise, and the same kind of sen¬ sation as when strongly electrified by art. Height of The height of clouds in general is not great; the sum- the clouds, mits of very high mountains being commonly quite free from them, as Mr Brydone experienced in his journey up Mount iEtna. But those which are most highly electrified descend lowest, their height being often not more than seven or eight hundred yards above the ground ; nay, some¬ times thunder-clouds appear actually to touch the ground with one of their edges ; yet the generality of clouds are suspended at the height of a mile, or little more, above the earth. Some, however, have imagined that clouds rise to a most incredible and extravagant height. Maignan of Toulouse, in his Treatise of Perspective, gives an account of an exceedingly bright little cloud that appeared at mid¬ night in the month of August, and spread itself almost as high as the zenith. Pie says that the same thing was also observed at Home; and thence concludes that the cloud was a collection of vapours raised beyond the pro¬ jection of the earth's shadow, and consequently illuminat¬ ed by means of the sea. This, however, can by no means be credited ; and it is much more probable that this cloud owed its splendour to electricity, than to the reflection of the solar beams. Their curi- In the evenings after sunset, and the mornings before ouscolours. sunrise, we often observe the clouds tinged with beautiful colours. They are mostly red, sometimes orange, yellow, or purple, more rarely bluish, and seldom or never green. The reason of this variety of colours, according to Sir Isaac Newton, is the different size of the globules into which the vapours are condensed. But this is controverted by Mr Melville, who thinks that the clouds reflect the sun’s light precisely as it is transmitted to them through the at¬ mosphere ; which reflects the most refrangible rays in the greatest quantity, and therefore ought to transmit the least refrangible ones, red, orange, and yellow, to the clouds, which accordingly appear most commonly of those colours. C L o 3 In this opinion he was greatly confirmed by observing, Cloud, while he was in Switzerland, that the snowy summits of the Alps turned more and more reddish after sunset, in the same manner as the clouds ; and he imagines that the semi¬ transparency of the clouds, and the obliquity of their si¬ tuation, tend to make the colours in them much richer and more copious than those on the tops of snowy mountains. The motions of the clouds, though sometimes directed Of the mo- by the wind, are not always so, especially when thunder isti°ns °f about to ensue. In this case they seem to move very slow- cloutls' ly, and often to be absolutely stationary for some time. The reason of this most probably is, that they are impelled by two opposite streams of air nearly of equal strength, by which means their velocity is greatly retarded. In such cases both the aerial currents seem to ascend to a very considerable height; for Messrs Charles and Roberts, when endeavouring to avoid a thunder-cloud in one of their aerial voyages, could find no alteration in the course of the cur¬ rent, although they ascended to the height of four thou¬ sand feet from the surface of the earth. In some cases the motions of the clouds evidently depend on their elec¬ tricity, independently^ of any current of air whatsoever. Thus, in a calm and warm day, we often see small clouds meeting each other in opposite directions, and setting out from such short distances, that we cannot suppose any" opposite winds to be the cause of such motions. These clouds, when they meet, instead of forming a larger one, become much less, and sometimes vanish altogether; a circumstance undoubtedly owing to the discharge of op¬ posite electricities into each other. This serves also to throw some light on the true cause of the formation of clouds; for if two clouds electrified, the one positively and the other negatively, destroy each other in contact, it follows, that any quantity of vapour suspended in the atmosphere, while it retains its natural quantity of elec¬ tricity, remains invisible, but becomes a cloud when elec¬ trified either plus or minus. A difficulty, however, still occurs, namely, in ‘what manner a small quantity of va¬ pour surrounded by an immense ocean of the same kind of matter can acquire either more or less electricity than that which surrounds it; and this indeed we seem not as yet to have any data to solve in a satisfactory manner. The shapes of the clouds are likewise undoubtedly owing Their to their electricity; for in those seasons in which a great shapes, commotion hasbeen excited in the atmospherical electricity, we shall perceive the clouds assuming strange and whimsi¬ cal shapes, which vary almost every moment. This, as well as the meeting of small clouds in the air, and then vanish¬ ing upon contact, is an almost infallible sign of thunder. Besides the phenomena of thunder and rain, the clouds Connee- are intimately connected with those of wind, and always tion of the assume a particular shape when a strong continued wind clouds with is about to ensue; though it is remarkable, that in the wind, strongest winds we often observe them stationary. Some¬ times also, on the approach of a cloud, we find a sudden and violent gust of wind arise ; while at others, the wind, though violent before, ceases on the approach of a cloud, and recovers its strength as soon as the cloud is past. This connection of the clouds with wind is most remark¬ able in mountainous countries, where the peaks are suffi¬ ciently high to have their tops involved in clouds. There is a very remarkable mountain of this kind at the Cape of Good Hope, from the clouds on whose top, according to the relations of travellers, the winds issue forth as if they had been confined in a bag; and something similar has been observed of mountains in other parts of the world. The uses of the clouds are evident, as from them pro- -pjie-r U;)eg ceeds the rain which refreshes the earth, and without which, according to the present system of nature, the whole surface of the earth must be a mere desert. They C L U Cluvier. Cloud, St are likewise of great use as a screen interposed between II the earth and the scorching rays of the sun, which are often so powerful as to destroy the grass and other tender vegetables. In the more secret operations of nature, also, where the electrical fluid is concerned, the clouds bear a principal share, and serve especially as a medium for con¬ veying that fluid from the atmosphere into the earth, and from the earth into the atmosphere; but in doing this, when electrified to a great degree, they sometimes produce terrible effects. This subject will be further treated under the article Meteorology. CLOUD, St, a town of France, in the department of the Seine and Oise. It is in a fine situation, overlooking the most beautiful part of the Seine. The palace and park are elegant and tasteful. It contains many other houses on a small scale, and 1250 inhabitants. It is a great re¬ sort of the Parisians, especially at those times when the waters are exhibited. CLOVIO, Giorgio Giulio, historical and portrait painter, was born in Sclavonia in 1498. Having in the early part of his youth applied himself to literature, his genius prompted him to pursue the art of painting as a profession ; and at the age of eighteen he went to Rome, where he spent three years to perfect himself in draw¬ ing, and devoted himself entirely to painting in miniature. His knowledge of colouring was derived from the in¬ structions of Julio Romano, and his taste in composition and design was formed by the observations he made on the works of Michael Angelo Buonarotti. With this as¬ sistance he arrived at such a degree of excellence in por¬ trait as well as in historical painting, that he was account¬ ed equal to Titian in the former, and in the latter not infe¬ rior to Buonarotti himself. He died in 1578. CLOVIS I. was the real founder of the French mo¬ narchy. He was the first who conquered the several pro¬ vinces of Gaul, which before his time had been possessed by the Romans, Germans, and Goths. Having united these to the then scanty dominions of France, he removed the seat of government from Soissons to Paris, and made this city the capital of his new kingdom. He died in 511, in the forty-sixth year of his age and thirty-first of his reign. CLOYNE, a town of Ireland, in the county of Cork, and province of Munster. It is hut a small place, though an episcopal residence. A church was built, and a bi¬ shopric erected here, by St Colman, who died on the 4th of November 604 ; and an abbey was also founded in 707. In 1430 the bishopric was united to that of Cork; but since the year 1678 this see has been governed by its own prelates, one of whom was the celebrated Berkeley. The population of the town amounts to 1847. CLUNY, a city of the department of the Saone and Loire, in France, on the river Grone. It contains 467 houses, and 4019 inhabitants, who are employed in mak¬ ing hats, gloves, cotton twist, and other articles. It is celebrated on account of its large Benedictine monastery, the buildings of which resemble a city, while its church is 600 feet in length and 120 in breadth. It has producedmany eminent men at different periods, and given to the church no less than six popes, among whom may be mentioned Pope Gregory VII. Long. 4. 33. 45. E. Lat. 46. 24. N. CLUPEA. See Herring. CLUVIER, Philip, in Latin Cluverius, a celebrated geographer, born at Dantzic in 1580. He was originally intended for the bar, but nature had designed him for dif¬ ferent pursuits. He travelled into Germany and the Ne¬ therlands, in order to study law; but while at Leyden, Joseph Scaliger persuaded him to give way to his genius for geography. Cluvier followed his advice, and for this purpose visited the greater part of the European states. He was well versed in many languages, and wherever he c o A went he obtained friends and protectors. On his return to Leyden, he taught there with great applause ; and died in 1623, at the age of forty-three. He wrote, 1. De tri- ^ bus Rheni alveis atque ostiis, et de quinque populis quondam accolis, inserted in the Recueil des Antiquites de la Ger- manie Inferieure, Leyden, 1611, 4to ; 2. Germanic Anti- quae lihri ires, necnon Vindelicia et Noricum, Leyden, 1616, 2 vols. fol.; 3. Sicilies Antiques libri duo, Sardinia ac Corsica Antiques, Leyden, 1619, fol.; 4. Italia Antiqua, Leyden, 1624, two vols. in one, fol.; 5. Introductionis in Universam Geographiam tarn veterem quam novam, libri sex, Leyden, 1629, 12mo. The best edition of this last work is that of Amsterdam, 1729, in quarto, with notes by Bunon, Hekel, and De la Martiniere. CLYDE, a large river of Scotland, formed by a concen¬ tration of a number of rivulets rising amidst the mountains and wastes which separate Lanarkshire from the counties of Peebles and Dumfries. This river is the third in point of magnitude in Scotland, but the most useful for com¬ merce. From its source it pursues a northerly course, and after being joined by a number of tributaries, and flowing for nearly an hundred miles, it discharges itself into the broad expanse of the Atlantic, through the great estuary called the Frith of Clyde. Some of the numerous cataracts which it forms in its progress to the ocean, par¬ ticularly those of Corra Linn and Stonebyres, are consi¬ dered as among the finest of the kind in Great Britain. It is navigable for small vessels up to Glasgow. The canal which connects it with the Forth falls into the Clyde ten miles below that city. CLYTEMNESTRA, in fabulous history, the daughter of Jupiter and Leda. She married Agamemnon ; but whilst that prince was at the siege of Troy, she had an amorous intrigue with TEgisthus, whom she engaged to murder Agamemnon on his return to his dominions. Her son Orestes, however, revenged the death of his father by killing iEgistbus, and his mother Clytemnestra; but he was afterwards haunted by the huries as long as he lived. COACH. Few things have been more often or more unsuccessfully defined than this well-known and useful vehicle. Of the descriptions which have been given of it, many might with as much propriety be applied to various other machines of conveyance, which it would be a viola¬ tion of language to dignify with the name of coach. The nearest approximation to a definition appears to be, that it is a vehicle for commodious travelling, the body of which is covered in, and suspended by means of springs upon the frame-work to which the wheels are attached, the latter being sometimes two, and sometimes four in number. It does not appear that the ancients were acquainted with carriages of this description, although chariots and wag¬ gons, both open and covered, were employed in very re¬ mote ages. In Britain, and throughout Europe, coaches are drawn by horses, except in Spain, where mules are used for the purpose. In a part of the East, especially the dominions of the Great Mogul, coaches are commonly drawn by oxen. In Denmark, rein-deer are sometimes harnessed in coaches, though rather for curiosity than use. The coach¬ man is ordinarily placed on a seat raised before the body of the coach; but in Spain policy displaced him from that position by a royal ordinance, on occasion when the Duke d’Olivares discovered that a very important secret, re¬ specting which he had conferred in his coach, had been overheard and revealed by his coachman. Since that time the place of the Spanish coachman is the same with that of the French stage coachman and our postilion, namely, on the first horse on the left. According to Professor Beckmann (History of Inven¬ tions and Discoveries), coaches of some kind were known Clyde II Coach. o C O A C O A Coach, about the beginning of the sixteenth century; but the use of them was limited to women of the highest rank, it being accounted disgraceful in men to ride in them. It ap¬ pears, from the history of that period, that the electors and princes of the empire, when they did not choose to attend the meetings of the states, excused themselves to the emperor by informing him that their health would not permit them to travel on horseback ; and it was considered as unbecoming to ride in carriages like women. But it seems also pretty certain that, about the end of the fif¬ teenth century, the emperor, kings, and some princes, tra¬ velled in covered carriages, and also employed them in public solemnities. The nuptial carriage of the first wife of Leopold, a Spa¬ nish princess, cost, including the harness, 38,000 florins. The coaches used by that emperor are thus described:— In the imperial coaches no great magnificence was to be seen, being covered over with red cloth and black nails. The harness was black, and no gold was to be seen in the whole work. They had glass pannels, for which reason they were called imperial coaches. The harness was or¬ namented with fringes of red silk on days of festivity. The imperial coaches were only distinguished by having leather traces, whilst the ladies in the emperor’s suite were contented with traces made of ropes. Fifty gilt coaches, having six horses each, were to be seen, in 1681, at the court of Ernest Augustus of Hanover. The first time that plenipotentiaries appeared in coaches was at the imperial commission held at Erfurt in 1613. We meet with ample proof in the history of France, that in the fourteenth, fifteenth, and even sixteenth centuries, Coach, the monarchs rode on horses, the servants on mules, and ladies of distinction occasionally on asses. Yet carriages of some kind seem to have been used in France at an early period, since there is still preserved a statute of Philip the Fair, issued in 1294, for the suppression of luxury, in which the wives of citizens are prohibited the use of car¬ riages. The oldest coaches used by the ladies of England were denominated xchirlicotes, a name which has now sunk into oblivion. About the end of the fourteenth century, when Richard II. was forced to fly before his rebellious subjects, he and all his. attendants travelled on horseback, his mo¬ ther alone riding in a coach, because she was indisposed. But this became afterwards unfashionable, the daughter of Charles IV. having showed the ladies of England how conveniently she could ride on a side-saddle. According to Stowe, coaches first came to be used in England about the middle of the sixteenth century, hav¬ ing been introduced from Germany by the Earl of Arun¬ del. The English plenipotentiary travelled to Scotland in a coach in the year 1598, and these vehicles were gene¬ rally used about the year 1605. Duties on Carriages.—It is long since duties were im¬ posed on carriages, and these have varied considerably at different periods. The following table exhibits the number of four-wheeled and other carriages, exclusive of hackney coaches, upon which duty was charged in 1828 ; the rates of duty on each kind of carriage ; and the produce of the duties. Four-wheeled Carriages. Carriages charged at progressive rates. Persons keeping 1 2 3 4 5 6 7 8....; 9 and upwards. Total. Additional bodies., Carriages let to hire without horses Post chaises and other carriages let to hire with! horses J Public stage coaches Total. Two-wheeled Carriages. Drawn by one horse Drawn by two or more horses Total. Additional bodies. Number of Carriages. 21,876 5,017 924 244 96 36 14 8 12 28,227 55 472 6,596 2,996 9,647 48,318 425 48,743 14 Rates of Duty. £ s. d. 6 0 0 6 10 0 7 0 0 7 10 0 7 17 6 8 4 0 8 10 0 8 16 0 9 1 6 3 3 0 6 0 0 5 5 0 5 5 0 3 5 0 4 10 0 A mount of Duty. £ s. d. 131,256 0 0 32,610 10 0 6,468 0 0 1,830 0 0 756 0 0 295 4 0 119 0 0 70 8 0 108 18 0 173,514 0 0 173 5 0 2,832 0 0 34,629 0 0 15,729 0 0 1 11 6 53,190 0 0 157,033 10 0 1,912 10 0 158,946 0 0 22 1 0 By 1 Will. IV. c. 35, it is enacted, that for every carriage with four wheels, each being of less diameter than thirty inches, drawn by a pony or ponies, mule or mules, above twelve but not exceeding thirteen hands high, an annual duty of L.3. 5s. shall be charged. Carriages with four wheels, drawn by one horse, &c. and no more, are to pay L.4. 10s. Every carriage with four wheels used by any common carrier in the carriage of goods, where such car¬ riage is only occasionally used for the conveyance of pas¬ sengers for hire, and in such manner that the stamp-office duty, or any composition for the same, is not payable under any license from the commissioners of stamps, is charged 6 C O A Coach- L.2. 10s. per annum; and where such carriage has less making, than four wheels, it is only charged L.l. 5s. per annum. —Any carriage with less than four wheels, each of which is of less diameter than thirty inches, and not let for hire, drawn by a pony or mule not exceeding twelve hands high, is exempt from duty. Hackney Coaches are coaches stationed in the streets or other public places, and bound to carry those who re¬ quire them at certain fixed rates of hire, according to the distance travelled. Vehicles of this description were first established in London in 1625, and in Edinburgh in 1773. The number of hackney coaches, chariots, and ca¬ briolets licensed in the metropolis on the 1st of January 1830 was 1265. The rates of duty were L.2 per lunar month for each carriage; and the produce of the duties, including fines, was L.32,908. 18s. 6d. The fares, &c. are regulated conformably to the act 48 Geo. III. c. 87. Stage Coaches, as defined in the act of parliament, 3 Geo. IV. c. 95, sect. 6, are carriages or vehicles used, em¬ ployed, or let out for the purpose of carrying passengers for hire, and travelling at the rate of three or more miles in the hour, without regard to the number of wheels, horses, or passengers, or whether the same be open or close, provid¬ ed each passenger be charged a separate and distinct fare. The above definition applies to carriages either drawn by horseS or propelled by steam. The latter species of ve¬ hicles are as yet exempt from taxation, but the following duties have been imposed upon the former :—Any carriage or vehicle, with two or more wheels, without springs, and drawn by one horse only, for every mile which it shall be licensed to travel, one penny. Any carriage, &c. without springs, and drawn by two horses only, for every mile, &c. two pence. Any carriage, &c. having springs, and.drawn by one horse only, for every mile three half pence. Any carriage, &c. drawn by two horses only, having springs, not distinguishing between inside and outside passengers,. per mile three pence. And any carriage, &c. as last men¬ tioned, drawn by three or more horses, for every mile four pence half-penny. A duty of L.5. 5s. a year is also im¬ posed upon every stage coach. For various statutes and I’egulations relating both to stage and hackney coaches, and which make provision for the safety and convenience of the passenger, see McCulloch’s Commercial Dictionary, p. 264-5. Mail Coaches voce stage-coaches of a particular construc¬ tion, which, for a certain consideration, carry his majesty’s mails, are protected by a guard, and subject to the regu¬ lations of the post-office. Coach-making is a combination of crafts, such as are very rarely united in one calling or trade. The techni¬ cal names of those composing the different branches are, body-makers, carriage-makers, wheelers, spring-makers, axle-makers, smiths, trimmers, &c. Painting is an im¬ portant part of the business; and those professing it are divided into body, carriage, and heraldry or ornamental painters. These classes of workmen have each their own department in the construction of a coach, and none of them can be dispensed with. Under the general head of coach¬ making a great variety of different kinds of vehicles are produced, such as close coaches, landaus, landaulets, cha¬ riots, phaetons, briskeys, gigs, &c.; of the three kinds last named, there are almost infinite varieties, both with regard to construction and the manner of finishing. The fashion with respect to these is about as fluctuating and mutable as that of dress. One thing is certain, however, that in neatness and general utility the vehicles of the present day are superior to those of any former period. Within the last ten years or so a great revolution has taken place in regard to coach-making. For a few years before that period, coach-makers could not get their coach- C O A es made short enough in the carriage, nor small enough Coach- in the body, from the false notion, that being lighter, and nmking. easier drawn, they would answer the purpose better. There can be no doubt that they were lighter, and probably easier drawn, but it has been proved that shortness in the car¬ riage not only makes them harder to ride in, but also hard¬ er on the axles and springs, thus rendering them more apt to break down. Noblemen’s and gentlemen’s carriages are now, however, made a great deal larger in the body ; the carriages them¬ selves are also longer, and the wheels not so high as those in use formerly. Coaches may be divided into two classes, namely, gentlemen’s carriages, to which the above remarks refer, and road coaches. If a revolution has taken place in regard to the former, much more has it done so in regard to the latter. A few years ago road-coaches were made to weigh at least twenty or twenty-five cwts., and often more, and were then constantly breaking down. They were generally drawn by four horses, and carried, we believe, sixteen passengers, besides driver and guard, the driver changing every stage. Now they are constructed so as not to exceed twelve or fourteen cwts., and are drawn by two horses, carry thirteen passengers, and tra¬ vel in about one third less time without changing the driver, unless the coach travels more than four or five stages. A broken down road-coach is now a thing rarely heard of; and, except the mail, they in general have no guard. Nay, more ; while under the old system, they were not only high set upon their carriages, but the outside passengers and luggage were almost exclusively placed upon the top, and consequently they were easily overset; while on the present system the bodies are placed low, and the luggage deposited in large masses before and be¬ hind the vehicle. Above these sit the outside passengers ; so that the whole load, instead of top weight as before, acts as ballast to prevent the carriage from oversetting, and hence the few coach accidents of late, in comparison with those which used to occur under the old system. It is proper to observe, however, that the great improve¬ ment in road-making has in no small degree contributed to the safety and convenience of travelling. The principal part of the coach-making business depends chiefly on the selection of the materials for the construc¬ tion of the work; and the first, and not the least in im¬ portance, is the stock of wood. It requires a good deal of experience to apportion this article so as to apply the different kinds of it to that part of the work for which it is the best adapted. Ash is the kind of wood commonly used in the frame-work both of body and carriage ; and the quality best suited for body wood is that of a mild and free nature, while for the carriage the wood cannot be too strong or robust. Full-grown wood is best suited for both purposes, because young wood, although of a tough nature, is found from experience to fail sooner, and not to last so long as full-grown timber. But in all cases it must be cut into planks before the log gets into a state of decay after being felled. The planks must also be allowed to lie until they are properly seasoned. After the frame-work is made, the lower part of the body is pannelled up with bay mahogany of the softest kind. As the pannels have to be bent into peculiar shapes, hard mahogany will not answer the purpose. Close coaches or chariots are covered on the roof and upper quarters with leather dressed without grease, so as to receive the painting; whilst the roof and upper quarters of landaus and landaulets are, in order to afford facilities for opening, covered with leather properly dressed in oil, and blackened by the currier upon the grain side, so as not to require the help of the painter; but to keep it in this pliable state it requires the constant care of the coachman. The kinds C O A C O A Coach of wood generally applied to coach-wheel making are elm coaks are made, but the volatile products are lost. To II for the naves, oak for the spokes, and ash for the felloes ; save these, Lord Dundonald proposed to burn the coals in Coak. kut keech felloes are often used ; and it is the opinion of a close furnace, to which he adapted an apparatus for con- the writer, formed upon experience, that beech, when cut veying the coal-tar, with the ammoniacal products, into into felloes from the log shortly after it is felled, and kept proper recipients. About the same time Baron Von until these become dry before being put upon wheels, is Haak, a German, constructed works in the neighbourhood decidedly the best. Indeed nothing but properly sea- of Newcastle, for distilling the small coal in large cast- soned wood can be applied to any purpose in the construe- iron cylinders, upon the plan which has since been adopted tion of a coach. in the gas wmrks ; except that the soot from the fur- A great improvement has of late years been introduced nace fires is, at Newcastle, during a certain period of the into the making of coach-springs, from the quality of steel combustion, before any gray ashes have begun to arise, used in their construction. Formerly nothing w'as used conveyed into a chamber contrived for the purpose, and but German steel, which from its hardness was more apt collected for lamp-black; an economical practice, which to snap than the English steel now employed for that pur- does not appear to have been carried into the gas works, pose. The latter, with superior elasticity, combines a It is probable that, as the practice extends of lighting strength that enables the spring-maker to fabricate his our towns with carburetted hydrogen gas, most of the springs at least one third lighter than formerly, while they coak used in manufactures will be furnished in this way; stand equal fatigue, with less risk of breaking. Although but as the coak thus produced will probably contain more axles are at present in a high state of perfection, yet no sulphur, it is not likely that it will be fit for the smelting material improvements have been made upon them for of iron-ore; the coak for which must, therefore, continue these twenty or twenty-five years. The kinds of axles now to be made in the old way. chiefly used are the common or plain axle, the mail-coach COAL. See Mineralogy. patent, and the Collinge patent, which last, when proper- COAL TRADE. The vast importance of coal to the ly executed, is found to be the best for retaining the oil, arts, manufactures, and general prosperity of Great Britain, as they are generally found to be in good order in this renders the subject of the coal trade, and also the question respect after having performed a journey of 500 or 600 as to the period when the exhaustion of our coal mines miles. The iron mounting of coach-work requires the skill may be anticipated, matters of more than ordinary moment, of most experienced smiths; for, besides the solidity re- With regard to the latter point, the investigations hither- quired, a considerable degree of taste to form the shapes to made as to the extent of the coal beds in all directions and sets of the different parts is necessary. No branch of are too unsatisfactory to afford grounds for coming to any the coach-making business contributes more to the ele- . thing like an approximation to the truth. One thing, how- gance of the vehicle than that of the painter. His colours ever, is positively certain, that for a great many centuries must be of the best quality, and unadulterated, as they to come the supply of coal will be equal to the demand, have to stand exposure in all weathers. The varnish Mr Taylor, an experienced coal owner, calculates the quan- used is made from gum, and is called copal varnish, of tit}' consumed in Great Britain and Ireland at 15,586,000 which there are two kinds, the finest being used for finish- tons annually, exclusive of foreign exportation ; and this es- ing the body, and the second for finishing the carriage, timate does not materially differ from those of Messrs Ste- Heraldry painting is a very fine art, and requires a know- venson and Bakewell. With regard to the extent of the ledge of heraldry, combined with considerable practice, coal fields, it is the opinion ot Mr Taylor that those of Dur- before perfection can be attained. The business of the ham and Northumberland are adequate to furnish the pre¬ trimmer is to make and put in the linings, mount the coach- sent annual supply for more than 1700 years. Dr Buck- man’s seat, steps, &c., and put on the leather work, bead- land, the celebrated geologist, thinks this estimate much *ing, &c. Coaches built in London are reputed the most exaggerated ; but he is of the same opinion with Bakewell, perfect of their kind of any in the world. that in South Wales alone there are coal beds which will Coach, or Couch, is also a sort of chamber or apart- meet the present annual demand for 2000 years to come, ment in a large ship of war near the stern. The floor of When we take into account the other extensive coal mines it is formed by the aftmost part of the quarter-deck, and throughout both England and Scotland, it must appear suf- the roof of it by the poop. It is generally the habitation ficiently absurd that the exportation of this valuable mine- of the captain. ral should be cramped by heavy duties, on the ground COAK, or charred pitcoal, is prepared for the smelting that the mines would become soon exhausted, of iron ore, by igniting the coals piled up in long ridges From the following report of Mr Buddie, a well-inform- in the open air, and closing in the cinders with earth, ed coal engineer, it will be seen that the opinion general- when brought to a glowing red heat. For the use of the ly entertained of the vast profits of coal mining has not manufacturers, the method hitherto most in practice has been well founded. “ Although many collieries, in the been to burn the small or screened coal in conical ovens, hands of fortunate individuals and companies, have been built of firestone or brick, the floor being generally about perhaps making more than might be deemed a reasonable six feet diameter, and the oven eight feet high, while an and fair profit, according to their risk, like a prize in a aperture of eighteen inches diameter is left at top. The lottery; yet as a trade, taking fhe whole capital employ- small coal is thrown in to the depth of fifteen inches or ed on both rivers, he should say that certainly it has not more, and then ignited. The oven door is at first kept open, been so.” (First Report of the Committee of the House and the hole at the top left uncovered till the mass is red- of Cords.') On being asked “ What have the coal-owners hot. I lie door is then closed, and by degrees the hole at on the iyne and Wear, in your opinion, generally made the top is covered over by two large flat stones, gradually on their capital employed ?” He replied, “ According to approaching each other, when the whole is left to cool, the best of my knowledge, I should think that by no means When sufficiently cooled, it is drawn out with long iron ten per cent, has been"made at simple interest, without rakes, and the mass is found to have assumed a rude colum- allowing any extra interest for the redemption of capital.” nai arrangement, not much unlike starch. I he oven is im- 'I he high price of coal in the metropolis of England is mediately charged again with small coal, which the heat not to be ascribed, as was long supposed, to the monopoly remaining in the floor is found sufficient to ignite, and so of the coal-owners on the Tyne and W7ear, but to the vari- the operation goes on. In both the above ways good ous charges and duties which have been laid upon it in i Coal Trade. 8 C O A Coal trade, passing from the hands of the owner into those of the con- sumer. The price of a chaldron of coals in London in 1830 amounted to L.2.7s. lO^d., which charge was thus ap¬ portioned : Coal-owner for coal, L.O 13 9 Coal-fitter, ship-owner, municipal dues, &c. Oil Government duty, corporation charges, and London coal merchant, 1 5 L.2 10 The government duty of six shillings has been abo¬ lished since the above-mentioned period, but the other charges remain nearly the same ; and it is the opinion of all who have minutely examined the subject, that there is ample room for retrenchment. The charges of those em¬ ployed in the trade are in almost every case exorbitant, and they arise principally from a pernicious system of mo¬ nopoly which is persevered in. The various municipal taxes also contribute largely to enhance the price of coal. For an able and minute analysis of the subject, the reader is referred to IVLCulloch’s Dictionary of Commerce, p. 274. The sale of coal by weight instead of by measure will undoubtedly do away with some of the more flagrant abuses that have infested the trade. The facilities afforded for fraudulent dealing under the metage system were ample, and ^ave rise to serious loss on the part of the coal owner. It is well known that coal, if broken into pieces of even mo¬ derate bulk, measures a great deal more than when in large masses. The shippers were well aware of this fact, and insisted on the proprietors supplying them with great coal C O A only; and thus the latter had an immense quantity of Coal trad small coal thrown on their hands, which they were com- pelled to burn on the spot. “ I have known,” says Mr Buddie, in the report above quoted, “ at one colliery as many as from ninety to a hundred chaldrons a day de¬ stroyed.” Sale by weight, however, has at last abated this monstrous system. For a considerable period the duty on large coal export¬ ed was 17s. 6d., and on small coal 4s. 6d. per chaldron. Re ¬ cently, however, a reduction has taken place in the former impost. The following is the state of the duties levied at present (1833). Coals not being small coals, exported to any place not a British possession, viz. in a British ship, 3s. 4d. per ton ; in a foreign ship, 4s. per ton. Small coals, culm, and cinders, exported to any place not a British possession, viz. in a British ship, 2s. per ton ; in a foreign ship, 4s. per ton. The policy of levying a heavy duty on the exportation of coal, from a dread of draining our mines, is, from the statements previously made, sufficiently absurd. A further reduction of the impost on large coal, at least, would be a source of wealth to the country, and advantage to the re¬ venue. The following is an account of the quantity of coals, culm, and cinders, exported from the different ports oi England, Scotland, and Wales, for ten years ; distinguish¬ ing those sent coastwise to Ireland, to British colonies, and to all foreign countries, and also distinguishing the quantities sent to each. Vears 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 To other Ports of Great Britain (Coastwise). To Ireland. Coals (except Small Coals) and Cinders. 438,045 437,074 463,974 491,094 534,835 547,939 539,760 557,355 595,278 645,471 Chaldrons Imperial Mea¬ sure. Small Coals. Chaldrons Imperial Mea¬ sure. 2,105,745 2,423,263 2,256,757 2,301,770 2,672,456 2,587,880 2,623,354 2,788,125 2,539,871 2,586,266 18 71 105 427 62 232 25,036 78,758 103,115 75,097 Chaldrons Imperial Mea¬ sure. 70,934 105,911 97,396 88,953 92,425 121,091 121,357 139,360 127,026 121,201 Coals (except Small Coals) and Total Quantity 8 Cinders, sent Coastwise, stated in Tons Weight. Tons. 3,459,508 3.947.908 3.731.908 3,810,239 4,372,839 4,308,571 4,384,433 4,730,307 4,440,318 4,507,935 Tons. Chaldrons Imperial Measure. To British Colonies. Coals (except Small Coals) and Cinders. 1819 1820 1821 1822 1823 1824 1825 1826 18271 1828 9,895 9,191 10,521 9,741 13,606 12,211 10,527 42,490 43,963 50,563 Chaldrons Imperial Mea¬ sure. 42,813 56,500 55,431 54,821 51,281 60,254 69,648 55,231 53,645 •53,277 Small Coals. Chaldrons Chaldrons Imperial Mea- ; Imperial Mea¬ sure. ! sure. 1,333 1,784 2,016 18,719 3,448 2,684 5,022 2,796 3,095 2,458 233 254 115 99 63 288 278 118 Total Quantity exported to Bri tish Colonies, stated in Tons Weight- Tons. 71,497 90,447 90,423 111,822 89,713 99,575 114,264 123,437 123,109 128,092 156,581 119,609 140,851 156,236 166,131 162,878 159,723 236,052 ' 198,857 242,944 354,439 399,743 352,600 376,943 373,333 367.815 368.815 367,849 306,289 336,550 Small Coals. Chaldrons Imperial Measure. Culm. Chaldrons Imperial Measure. Total Quantity exported to Ire¬ land, stated in Tons Weight. 21 112 1,607 2,368 119 30 486 15,168 10,946 10,441 10,486 6,415 11,352 15,036 23,599 19,214 21,100 Tons. 669,660 606,400 644,787 694,024 693,413 691,429 695,832 779,584 650,728 740,071 To Foreign Countries. Coals (except Small Coals) and Cinders. Chaldrons Chaldrons Newcastle Newcastle Measure. i Measure. Small Coals. Culm. 9,475 7,081 8,236 9,692 5,446 10,952 27,827 45,518 54,090 38.507 22,732 20,536 23,671 22,425 16,579 18,783 15,501 9,222 11,403 11,056 35,712 36.509 37.509 38,892 42,599 44,349 47,671 57,565 59,867 60,315 Chaldrons Newcastle Measure. 9 159 218 216 526 515 755 270 478 26 Total Quantity exported to Foreign Coun tries, stated in Tons Weight.' Tons. 164,375 158,672 170,941 172,754 163,662 179,617 197,234 223,219 244,222 227,709 C O A COB 9 Coamings » Coat. The following table exhibits the amount of customs revenue on coals, cinders, and culm, for ten years. Customs Revenue on Coals, Cinders, and Culm. On Coals, Cinders, and Culm brought or carried Coastwise or by Inland Navigation, in the United Kingdom. 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 Gross Revenue. £ 957,899 1,086,564 1,019,865 1,006,506 1,145,659 948,810 899,918 972,839 862,526 922,682 a. 17 3| 10 51 2 3-| 1 3| 16 10 14 91 19 91 8 e| 1 44 On Coals, Cinders, and , Culm exported to Foreign Parts. £ 48,816 7 48,359 3 50,911 13 52,771 4 44,020 5 42,821 16 43,421 1 40,553 17 45,182 9 41,423 6 s. a. Hi li 6| lOf 10 8 3 2 Total Gross Revenue. £ 1,006,760 1,134,924 1,070,777 1,059,277 1,189,679 991,632 943,339 1,013,393 907,718 964,105 s. a. 17 9f 1 01 3 61 6 10 6 9L 13 84 16 17 ‘j 51- 17 4 7 64 Deductions from the Gross Revenue for Draw- Net Produce of the Duties backs on Exportation, on Coals, Cinders, and Culm &c., and Repayments on Over-Entries. £ s. 19,891 13 18,928 13 20,744 9 21,425 0 21,911 8 23,340 17 26,109 11 26,309 19 24,349 8 28,017 2 a. 2^ 3 24 8“ 101 3i 9| 10 41 *2 81 in the United Kingdom. £ s. i 986,869 4 7 1,115,995 7 9 1,050,032 14 4 1,037,852 6 2 1,167,767 17 11 968,291 16 54 917,230 4 987,083 17 883,369 9 936,088 4 ioi 74 d 10 With regard to the number of persons employed in the various branches of the coal trade, nothing certain has been ascertained ; but Mr M‘Culloch is inclined to think that the number of those directly engaged in it may be set down at from 160,000 to 180,000. For particulars regarding this estimate, and also as to the various details connected with the coal trade, see Dictionary of Commerce, article Coal. COAMINGS, in ship-building, are the planks, or frame, forming a border round the hatches, which raise them high¬ er than the rest of the deck. Loop-holes for musketry are often made in the coamings, in order to clear the deck of the enemy when the ship is boarded. COAST, a sea-shore, or the country adjoining to the edge or margin of the sea. The chief advantages arising from an extensive sea-coast are, that it affords a convenient op¬ portunity for exportation and importation to and from ail parts of the kingdom. Coast Castle, Cape, or Cabo Corso, the capital of the British settlements on the Gold Coast of Africa. It was first settled in 1610 by the Portuguese ; but they were dislodged a few years afterwards by the Dutch, who were in their turn ejected in 1661 by the British, in whose hands the place has remained ever since. It is irregularly built, and dirty; the houses are of clay, and generally of a square shape. The town is walled, and possesses a fort. The population amounts to about 8000. Long. 22. W. Lat. 5. 18. N. COASTING, in Navigation, the act of sailing along the sea-coast of any country. The principal points relat¬ ing to this branch of navigation are, observance of the time and direction of the tide, knowledge of the reigning winds, of the roads and havens, of the different depths of the water, and the qualities of the ground. CoastiNG-Pilot, a pilot who by long experience has be¬ come sufficiently acquainted with the nature of any par¬ ticular coast, and of the requisites mentioned in the pre¬ ceding article for conducting a ship or fleet from one part of it to another. COAT, or Coat of Arms, in Heraldry, a habit worn by the ancient knights over their arms, both in war and tournaments, and still borne by heralds at arms. It was a kind of surcoat, reaching as low as the navel, open at the sides, with short sleeves, sometimes furred with er¬ mine and hair, upon which were applied the armories of the knights embroidered in gold and silver, and enamelled with beaten tin, coloured black, green, red, and blue; and hence the rule never to apply colour on colour, nor metal on metal. The coats of arms were frequently open, and diversified with bands and fillets of several colours, alter- VOL. VII. nately placed, as we still see cloths scarleted, watered, and the like. Hence they were called devices, as being divided and composed of several pieces sewed together; hence the words fess, pale, chevron, bend, cross, sedtier, lozenge, and the like, which have since become honoura¬ ble pieces, or ordinaries of the shield. Coat of Mail, a kind of armour made in form of a shirt, consisting of iron rings interwoven netwise. COAZZO, a town of Italy, in the province of Susa and kingdom of Sardinia. It stands at the junction of the rivers Cangone and Sangonetto, and contains 3200 inha¬ bitants, who carry on a considerable linen weaving trade. COBADONGA, a small town of Spain, in the province of Asturias. Its fame has been spread through the penin¬ sula, on account of the antiquity and sanctity of its Gothic cathedral, in which was consecrated Pelagius, the first of those zealous Christians that took arms against the Ara¬ bian invaders of Spain. In the retreats in this vicinity, the first assemblages of the remnant of the Goths were collected, and from thence they spread with growing strength, till at length, after more than seven hundred years of unceasing hostilities, the whole of the Moorish race was driven from the soil of Spain. COBALT. The word cobalt is commonly used to de¬ note a metallic ore consisting of arsenic combined with the metal which is properly called cobalt. It therefore does not occur in a native state, but in that of different ores, which, according to their combinations, come under one or other of the following heads : 1. Gray cobalt, the octahedral cobalt pyrites of Mohs, and bright or tin-white cobalt of Phillips and Jameson, whose colour is white inclining to steel-gray, streak gray¬ ish black, and fracture uneven. It contains, according to Stromej'er, Cobalt 20-31 Arsenic 74-21 Iron 3-42 With a little sulphur and copper. It occurs both crystalline and massive, the crystals being generally rent and cracked. It is met with princi¬ pally in veins accompanying ores of silver or copper, as at Freyberg, Annaberg, and particularly at Schneeberg in Saxony ; at loachimsthal in Bohemia ; and at Wheel Spar- non, near Redruth, in Cornwall. 2. White cobalt. The hexahedral cobalt pyrites of Mohs, and the silver-white cobalt of Jameson. This ge¬ nerally occurs in cubes and pentagonal dodecahedrons, having a.very bright metallic lustre, a silver-white colour tinged at times of a reddish hue, and a cleavage perfectly 10 COB COB Cobbing parallel to the faces of the cube. It contains, according H to Stromeyer, Coburg Cobalt..; 33-10 Arsenic 43-46 Iron 3-23 Sulphur 20-08 At Tunaberg in Sweden it is met with in large, re¬ splendent, distinctly-pronounced crystals ; also at Modum in Norway, and in Silesia. The richest known mines are, however, those of Wehna, in Sweden, where, though the ore only occurs massive, and is associated with mica slate, it is so easily obtained, and got in such considerable quantity, as to afford a source of much profit. Both these ores give off a large quantity of arsenical fumes when exposed to the action of the blowpipe, and fuse only after being roasted. They impart a blue colour to borax and other "fluxes, and afford a pink solution with nitric acid. The residuum of cobalt, after the sulphur, ar¬ senic, and other volatile matters are driven off by calcina¬ tion, is termed zaffre, and in that state it is imported into this country for the purpose of colouring earthenware and making smalt. The colouring power of oxide of co¬ balt on vitrifiable mixtures is greater perhaps than that of any other metal; one grain giving a full blue to 240 grains of glass. The remaining ores of cobalt are the red cobalt, arse- niafe of coball, or cobalt bloo?n as it is called, possessing a beautiful crimson-red or peach-blossom colour, generally crystallized in small four-sided prisms, and for the most part a native of Schneeberg in Saxony, and Saalfeld in Thuringia ; and cobalt-ochre, a black, brown, or even yel¬ lowish-coloured mineral, forming friable, indurated, earthy- like masses, which are generally soft to the touch, easily sectile, and of a comparatively low specific gravity. COBBING, a punishment sometimes inflicted at sea. It is performed by striking the offender a certain number of times on the breach with a flat piece of wood called the cobbing-board. It is used chiefly as a punishment for those who quit their station during the night-watch. COBLE, a boat used in the turbot fishery, twenty feet six inches in length, and five feet in breadth. It is about one ton burthen, rowed with three pair of oars, and ad¬ mirably constructed for encountering a heavy sea. COBLENTZ, a city, the capital of a circle of the same name, in the Prussian province of the Lower Rhine. The circle is on both sides of the Rhine, and extends over 135 square miles, or 86,400 acres, and contains four cities, three towns, and 136 villages, and 40,134 inhabitants. The city is situated on the left bank of the Rhine, over which is a flying bridge, connecting it with Ehrenbreitstein. The situation is beautiful, on an extended plain between mountains, at the junction of the Moselle with the Rhine. The soil is highly fertile in the valley, and the sides of the hills around are covered with vineyards. The city is walled, but its chief defences are two strong forts, and the fortress of Ehrenbreitstein, on the opposite side of the river, which completely command it. The town is well built, the squares are fine, and some of the public edifices are magnificent. It contains one Protestant and fourteen Catholic churches, 1050 houses, with (in 1817) 13,314 in¬ habitants, including tbe garrison. Owing to the two navigable rivers, it carries on a con¬ siderable trade, especially in Rhine and Moselle wine. There are some few manufacturers, but none considera¬ ble, as the city depends principally on being tbe seat of government and of the courts of law, and occupying a po¬ sition on the great road to the interior of Germany. Long. 7. 25. 49. E. Lat. 50. 21. 55. N. COBURG. See Saxe-Coburg. Coburg, a city, the capital of the duchy of Saxe- Coburg. It stands in a pleasant and fruitful district on Cocceius the river Its, and is surrounded by mountains, whose sides are covered with vines, and at whose feet are well culti- ,_°C11T^' vated gardens. It contains 765 houses, and, including the military, 8154 inhabitants. The ducal palace is a magnificent pile of building, which incloses the court, church, and the public library, consisting of more than 25,000 volumes, and all the state papers. -•'Ihere are five other churches, and appropriate institutions for education and charity. But the manufactures are few, and the trade only such as is attracted by the markets and fairs. Long. 10. 52. 59. E. Lat. 50. 15. 14. N. COCCEIUS, John, professor of theology at Bremen, was founder of a sect called Cocceians, who, amongst other singular opinions, held that of a visible reign of Christ in this world, after a general conversion of the Jews and all other people to the true Christian faith, as laid down in the voluminous works of Cocceius. He died in 1699, at the age of sixty-six. COCCOLITE, in Mineralogy, a green-coloured variety of hornblende, which generally occurs massive, or in con¬ cretions so loosely aggregated as to admit of being sepa¬ rated by the fingers. It fuses with difficulty before the blowpipe, and has a specific gravity of 3-3. It occurs^ with garnet and granular limestone in the iron mines of Arendal in Norway, at Pargas in Finland, and elsewhere. COCHABAMBA, a department of Bolivia, in South America. The climate is mild and the soil productive. Cochabamba is also the name of a province and town in this department. The town is situated at an elevation ot 8448 feet above the level of the sea, and is considered as one of the most healthy and agreeable places in Bolivia. The population of the department amounts to 435,000. COCHIN, a small province of Hindustan, on the coast of Malabar, intersected by the 10th degree of north lati¬ tude. It has the Malabar province on the north, Travan- core on the south, Dindigul on the east, and the sea on the west. A portion of this territory, equal to about 745 square miles, is attached to the district of Malabar, and is subject to British laws and regulations; but the remainder is un¬ der the independent jurisdiction of the rajah. This coun¬ try is beautiful in the northern parts, about Purgunuru and Shilacary. It consists of low hills, intersected by nar¬ row fertile valleys, finely wooded, well peopled, and ex¬ tremely well watered by small perennial streams, which enable tbe cultivators to raise two crops of rice annually. The high grounds are in general rocky, but the soil is good, though tbe cultivation of these hills is everywhere ex¬ ceedingly neglected. Groves of palms, mangoes, jacks, and lapintains skirt the bottom of the little hills, and shade the houses of the natives. The pasture is excellent, and the cattle, though remarkably small, are in good condition. Above these are woods of forest-trees, which, though not equal in size to those in Chittagong, are very fine, and free from rattans and other climbers. In these forests the same sort of trees grow as in Malabar, namely, the jack wood, wdiich is in general demand for cabinet work, and is small; ^ the erambo, or iron wood, which is too heavy for general use, and is seldom felled; the black wood, which is large and of fine dimensions, but which is rendered unsaleable by the practice of dividing it into short logs, which are dragged by elephants to the nearest river, and are fre¬ quently much bruised and splintered in the passage; the teak, which is inferior in essential oil, the grand preserva¬ tive of iron from corrosion, to that produced in Malabar. The viti, a black wood, also abounds in these forests; but most of the trees have been cut, and no care is bestow¬ ed to increase their reproduction, or to check tlm growth of useless timber. There are extensive forests of teak in the rajah’s territories; but before the wood reaches the c o c Cochin sea it must be floated through the British territories to the II sea-port town of Paniany, in South Malabar ; and the Com- Cochin pany’s government hesitated long whether they would ad- China. ^ tiie rajah’s subjects to the free navigation of this river. They were only determined to this wise and liberal policy by the earnest remonstrances of Major Munro, the resi¬ dent at Cochin. . .. In this province are many Nazarene or Christian vil¬ lages, which, for Indian towns, are well built and cleanly, and the inhabitants are a very orderly and industrious people, who live chiefly by trade or agriculture. The Jews are numerous in the vicinity of Cochin; and Mattacheiy, about a mile distant from that town, is almost wholly in¬ habited by them. They are divided into two classes, namely, the Jerusalem or white Jews, and the ancient or black Jews. . The Cochin rajah maintained his independence to a much later period than most of the other Hindu chiefs. When Hyder invaded his country, he quietly submitted to pay tribute, which was continued to his son lippoo, and which is now paid to the Company. In May 1809 a treaty offensive and defensive was concluded by Colonel Macau¬ lay, between the rajah and the East India Company, by the conditions of which the friends and enemies of either of the contracting parties were declared the friends and enemies of both. The rajah at the same time agreed to pay an additional tribute. F. Buchanan’s Journey from Madras through Mysore, Canara, and Malabar; Rev. C. Buchanan s Christian Researches in Asia. Cochin, a sea-port and principal town of the above pro¬ vince. The city is of a semicircular form, and is about a mile and a half in circumference. It has three gates, and the streets are wide and commodious. The chief public buildings are the church, the governor’s house, the bar¬ racks, and a public hotel. A fort was built at this place by Albuquerque in 1503, and it was the first possessed by the Portuguese in India. Cochin continued to increase and to flourish under their rule till the year 1663, when it was taken by the Dutch. During the period of their rule it was a place of very extensive commerce, and was inhabited not only by all sects of Christians, but by Hindus, Mahom- medans, and Jews, who are all equally tolerated, and who traded with Arabia, Persia, Bengal, and the whole sea- coast of India. The trade carried on with Surat, Bom¬ bay, the coasts of Malabar and Canara, and also with Arabia, Canara, and the islands in the Eastern Seas, is still extensive. The imports consist chiefly of dates, almonds, pearls, gum-arabic, piece goods, cotton, opium, shawls, benzoin, camphor, cinnamon and spices, sugar-candy, tea, china, and silks. The exports are pepper, cardamums, teak wood, sandal wood, cocoa-nuts, coir, cordage, cassia, and fish-maws. The harbour is on the north side of the towm, which stands on an island at the mouth of the Cali Cay tang river. At this fort also ship-building is carried on to a considerable extent, and vessels are constructed both on European and Asiatic models. The ports in the Arabian and Persian Gulfs are also supplied from Cochin with the timber which they require for repairing their different craft. Cochin was taken possession of by the British in 1795, when war commenced with Holland, and it was finally ceded to the British by the treaty of 1814. It is 170 miles north-west from Cape Comorin. Long. 76. 8. E. Eat. 9. 57. N. COCHIN CHINA. This extensive kingdom is situ¬ ated in the southern extremity of Asia, and forms part of the peninsula between China and Hindustan. It is not se¬ parated, however, by any distinct boundary from the neigh¬ bouring countries; and its limits have been greatly ex¬ tended by conquest beyond those of Cochin China proper, C O C 11 which is merely a strip of land betwreen the China Sea Cochin and the mountains, and is not above sixty or seventy miles China, broad. The empire of Cochin China, which took its ac- tual form in the beginning of the present century, com¬ prehends Cochin China proper, Tonquin, the principal part of Cambodia, and the little state of Chiampa. This state, as it has been aggrandised by conquest, extends from the point of Cambodia, in about 8° 30' north latitude, to the northern confines of Tonquin, which reach within a very few miles of the tropic, and from the longitude of 105° to about 109° east. It is bounded on the north by the Chi¬ nese Quangsi or Kiangsi and Yunan, bn the west by the kingdoms of Lao and Siam; while the Gulfs of Siam, Tonquin, and the China Sea bound it on the south¬ west, east, and north-east. This great country is divided by long ranges of mountains, which run nearly north and south, and in almost parallel chains, forming it into separate provinces, divided by physical boundaries, and inhabited by distinct tribes and nations, although subject to the same sovereign. By these mountainous ridges Tonquin and Cochin China proper are separated from Lactho Laos and Cambodia. Another chain separates the three latter states from Siam and China, and gradual¬ ly diminishes in height as it approaches the south, termi¬ nating at the southern extremity of Cambodia. The soil in Cochin China, especially in the low lands, is fertile, and its products are extremely valuable. Of these, sugar is the staple commodity; it is produced in the central dis¬ tricts of Cochin China proper, and is manufactured by the labour of the natives, and not, as in Siam, by that of the Chinese. The whole exportation, which is "princi¬ pally to China, amounts to about 2000 tons, or 30,000 peculs. Raw silk is the next article in importance. Its culture, as Mr Craufurd and the embassy which accom¬ panied him to Siam and Cochin China had an opportunity of observing in 1822, is carried on to a great extent in Cochin China, and to a still greater extent in Tonquin. The quantity which could be annually exported from the whole kingdom is estimated at 120,000 lbs. Consider¬ able quantities were carried away by some French ships which visited Cochin China, and the coarser kind was found to bear a fair price in the French market. Cochin China produces the true cinnamon ; and the quantity annu¬ ally exported appears to be about 266,000 lbs. Pepper of a good quality, but in small quantity and of high price, is produced in the central provinces of Cochin China ; but the quantity is inadequate to the demand which the Chi¬ nese trade creates for its exportation. It grows among the central mountains of Cochin China, whence it is exported to Cambodia and Tonquin, but principally to China, where it is much more highly valued than any other quality of this aromatic. It is not however prepared in a manner to suit the Indian or European markets; for which purpose it would be necessary that the natives should be instructed to free it from the epidermis, and otherwise to pack and to prepare it, as is practised in Ceylon. Another exclusive product of the central parts of the kingdom, which is ex¬ tensively cultivated and sent to the neighbouring pro¬ vinces, is tea, which is a very coarse and cheap commo¬ dity, the price seldom exceeding a penny or two pence a pound. It is doubtful, however, whether this tea would be fit for the consumption of Europe. There are two species of rice, namely, the mountain rice, and another which E produced in the alluvial lands. I he other productions ot these lands and of the adjacent forests are gamboge, gum, cardamums, eagle wood, areca-nut, betel-leaf, ivory, stick- lack ; hides, consisting of deer skins, buffalo, elephants, and rhinoceros hides ; peltry, consisting of tiger, leopard, otter, and cat skins; feathers, salt fish, horns and bones, dyewoods, and woods for ship-building and for domes- 12 7 C O C Cochin tic purposes. Valuable timber is found only in Cambodia, China, and a small quantity of teak wood is found in the forests; also ebony, cedars, mimosas, walnuts, iron-wood, and poon, and most of the other trees found in the woods of India. The wood used for ship-building and for domestic pur¬ poses is strong and durable, and is carried to the capital in large quantities. Mr Craufurd’s embassy had no op¬ portunity of examining its botanical character. There is a hard black wood extensively used in cabinet-work, and of large dimensions, which takes a fine polish, and might form an article of exportation. Cambodia also produces the Portuguese rosewood, which the Chinese export as they do from Siam; also sandal wmod and other scented woods. Among the products of Tonquin is a species of vegetable root, a cheap material, which forms the dead¬ weight of all the Chinese cargoes exported from Tonquin, and is used extensively both throughout Cochin China and the adjacent countries, and also in China, as the ma¬ terial of a red dye. Edible bird-nests, the sea-slug usu¬ ally called biche de mer, molluscas, and sea-blubber, and other marine productions of a gelatinous quality, form standing articles of trade with China, and are always in demand. Among the mountains of lonquin is the only portion of the Cochin Chinese empire which produces iron, gold, and silver. The iron received from these mines, which is as cheap as that from Siam, supplies the whole kingdom, with the exception of Siagun, which is furnish¬ ed from the latter country. Gold dust is found in many of the rivers; and there are prodigious rocks of marble situated on the banks of the river Faifoo, on a kind of sandy plain, of which large quantities have been export¬ ed.1 This remarkable range of marble rocks rises almost perpendicularly from the low sand hills, to a height of from 300 to 400 feet, without a hill or mountain near them.2 The foreign trade of the Cochin Chinese is almost ex¬ clusively with China, the trade carried on with Siam be¬ ing inconsiderable, and that with European nations still smaller. But there is no indisposition to trade, though among the European nations the notion has been propa¬ gated by travellers that the resort of European traders is in a great measure interdicted in this kingdom, on the same principle as in Japan and in all the ports of the Chi¬ nese empire, with the exception of one. On the contrary, there is no Asiatic country in which Europeans are ad¬ mitted on more easy terms than in Cochin China. In 1818, a new tariff was imposed on foreign vessels, by which the high duties imposed on all foreign vessels prior to 1818 were repealed, and equal duties substituted in their stead. By this regulation all vessels pay a rated measure¬ ment duty, moderate in its amount; and are exempted from all import duties payable previous to 1818. Vessels that are driven into the ports of Cochin China by stress of weather, or that visit them for the purpose of commercial inquiries, are free from all charges; and four of the prin¬ cipal ports of the Cochin Chinese empire are open to Eu¬ ropean commerce. It is also of great importance to the interests of foreign trade that in Cochin China neither the sovereign nor any of his officers have any thing to do with commercial concerns. TLhere are no royal monopolies, nor any claims of preference in the market; which odious pri¬ vileges are far more pernicious to commerce than the hea¬ viest duties. Of all the European nations, the French alone have availed themselves of these new regulations in favour of European trade; four French ships of consider¬ able burden having since visited Cochin China, bringing out fire-arms, iron, copper, woollens, and some curiosities c o c for the court, and having received in return full cargoes of sugar, with considerable quantities of raw silk. The productions which the Cochin Chinese receive from China are manufactured silks, porcelain, medical drugs, a very large supply of paper, principally for reli¬ gious purposes, and some fine teas; and until the esta¬ blishment of Singapore, about 150 chests of opium were obtained indirectly from Canton, some portion of it by sea in junks, and a good deal by land. I his trade with China is chiefly conducted with Cachao in Tonquin, Saigun in Cambodia, and Taifo and Hue in Cochin China. 'Ihere is also some inconsiderable intercourse with other parts of the empire. From the Malayan countries Cochin China receives pepper, cloves, nutmegs, with sandal-wood and tin, and from. India opium and saltpetre. From Europe the present importations consist of broad cloth, which has long been consumed in Cochin China, and is required for the army, consisting of 40,000 men, who are amply and uniformly clothed in British broad cloth of coarse scarlet. There is also a demand for some woollens of a finer fabric among the better classes, for an occasional winter dress. Some trade has lately commenced with Singapore; and from that port as well as Canton, junks have of late brought small quantities of fine heavy cotton goods, which are in much request among the better class¬ es. Chintzes and other coloured cotton goods are not at all in request, with the exception of handkerchiefs; neither are the coarse white cottons, such as are manufactured in India, fit to enter into competition with the domestic ma¬ nufactures of Cochin China. The Cochin Chinese, not¬ withstanding their skill in the manufacture of cannon and ammunition, do not manufacture a supply of fire-arms sufficient for the home demand. A French vessel which came out in 1819 supplied the king of Cochin China with 10,000 stand of arms, which still however continue in demand. European iron is also imported, which, from the little loss that it sustains in forging, compared with the native metal, has a superiority over it in point of economy. Cochin China, from its central situation, its navigable rivers, and its innumerable and excellent harbours, pos¬ sesses extraordinary advantages for commerce. Vv ith- in the whole kingdom there appear to be no less than five considerable rivers, which, while they diffuse fertility over the country, also greatly facilitate its internal com¬ munications. These are Kangkao, Cambodia, Saigun, Tonquin, and Hue. The first empties itself into the Gulf of Siam, and on it are situated Athien and Pontia- mas. It is connected with the great river Cambodia, and by means of it with Panompin, the capital of the king¬ dom, formerly much frequented by the European traders. This great river is described as navigable by ships of the largest size to the distance of forty miles up the country, where the city of Saigong is situated, having a capacious and commodious port, and an extensive naval arsenal.3 There is no river of any great magnitude in Cochin China. The river Hue has but a very short course; although broad, it is shallow, and does not materially facilitate na¬ vigation, either external or internal. But its estuary forms, during the south-west monsoon, a fine harbour, which ships of 200 tons burden may enter and quit with safety, while it is almost inaccessible during the opposite mon¬ soon. There is a river in Tonquin which in former pe¬ riods was well known to Europeans, and appears to have been accessible, notwithstanding the bar at its mouth, to vessels of 400 or 500 tons. It is now greatly obstructed by sand banks, and not navigable for vessels of above 200 Cochin China. 1 Asiatic Journal for 182G, Cursory Itemarfs on Cochin China. 2 Mission to Cochin China, from Finlayson’s Journal 3 Barrow’s Voyage to Cochin China, p. 247- c o c Cochin China. tons burden. This river has if£ source in the centre of the great Chinese province of Yu-nan. Few countries ' are so amply provided with harbours, there being within the G1 degrees of latitude which intervene between Cape St James and the Bay of Turon, no less than nine of the finest harbours in the world, accessible in every wind, quite safe to approach, and affording the most complete protection. The Bay of Turon, situated in latitude 10. north, is equalled by few in the eastern world, and sur¬ passed by none, for the security and convenience which it affords. . The principal town is Hue, the capital, situated se¬ venty or eighty miles north-east of Turon, on a river na¬ vigable for vessels of moderate burden. It is fortified; and in the arsenal every thing is in a style of neatness, magnitude, and perfection, which denotes a bold and war¬ like people. The other towns are Cachao in Tonquin; Saigun in Cambodia, a mercantile town of considerable size, on a branch of the Saigun river ; and Taifo or Faifo, situ¬ ated about fifteen miles from the entrance of the river, and now in ruins; Turon also, formerly the chief mart ot trade between China and Japan, now surrounded with marks of ruin. Cochin China, until within a few centuries after the Christian era, formed a part of the Chinese empire ; and in the general features of the natives, many of their cus¬ toms, their written language, and their religious opinions and ceremonies, it is easy to trace their Chinese origin. The Cochin Chinese, for example, resemble, according to Barrow, their Chinese progenitors in the ceremonies and processions observed at marriages and funerals, in the greater part of their religious superstitions, in the offerings presented to idols, in the consultation of oracles, and in the universal desire of inquiring into futurity by the cast¬ ing of lots ; in charming away diseases, in their diet and cookery, in their public entertainments, in their instru¬ ments of music, in games of chance, in cock-fighting, quail-fighting, and the devices of their fire-works. Their language, however, though originally Chinese, has now deviated so much from its standard as to be wholly unin¬ telligible to a Chinese. But the Cochin Chinese have effectually preserved the written character of the Chinese language ; and when the country was visited by Barrow, he found no difficulty in communicating with them by means of the Chinese priests who accompanied him. In external appearance the Cochin Chinese are the most diminutive of the Mogul race. I hey are short and squat. They want the broad face of the Malay, the cy¬ lindrical cranium and expanded lower jaw remarked in the Siamese, and the oblique eyes of the Chinese. Their heads and countenances are round; and they possess, according to Mr Finlayson, an expression of sprightliness, intelli¬ gence, and good humour, not to be found either in the Chinese or Siamese. Morals in Cochin China, as in every part of Asia, are at a very low ebb ; and the women espe¬ cially are in a very degraded state, and are permitted to indulge in every species of licentiousness. Neither parents nor husbands in any rank scruple for a moment to prosti¬ tute for gain either their wives or daughters. The fe¬ males in general have but slender pretensions to beauty; yet this want is compensated by a lively and cheerful temper, totally different from the morose character of the Chinese. They are doomed by the men to labour from morning to night in the most toilsome occupations. All the labours and the various employments connected with agriculture fall to their share ; and in some places they superintend all the details of commerce. They even assist 0 o c . in constructing and keeping in repair their mud-built cot¬ tages ; they manufacture coarse earthenware vessels ; na- ^ vigate boats on rivers and in harbours; bear articles to market; draw the cotton-wool from the pod, spin it and weave it into cloth, dye it, and make it up into dresses for their families.1 By the military system of the govern¬ ment, about two thirds of those who are fit for service are compelled to serve as soldiers at a paltry rate of pay; by which the people are taken away from agricultural and mechanical pursuits, and initiated into idle and unprofit¬ able habits. Those of the men who are not so employed engage occasionally in fishing, in collecting swallows’ nests and sea-slug in the neighbouring islands, and in various other occupations. But they have always leisure for their amusements, while the women are condemned to unremitting toil, being considered by the lower classes much in the light of beasts of burden fitted for use, and by the higher classes as the slaves of their pleasures. Ihese latter are arrogant in the extreme, and offensively coarse in their manners; while their inferiors are described as mild and inoffensive, lively and good humoured, affable and polite to strangers, but, under this exterior, as cun¬ ning, deceitful, impudent, conceited, and tyrannical where they can be so with impunity. These vices are traced to the nature of the government, which is completely despo¬ tic, the sovereign being the supreme disposer, both of the lives and properties of his subjects. “ The bamboo, says a traveller, “ which is perpetually at work, is the universal reformer of manners throughout Cochin China;” and the moral character of the people corresponds entirely to this illiberal and despotic system under which it has been formed. It is owung to"the same cause, namely, the in¬ security of property which prevails all over Asia, that the arts and manufactures make no progressive improvement, and that agriculture also is in such a backward state. The country exhibits nowhere the marks of industrious cul¬ tivation ; and the inhabitants are generally poor, and liv¬ ing in miserable cottages, with little furniture. The only branch of the arts in which they particularly excel is naval architecture, for which, however, they are not a little in¬ debted to the size and quality of the timber employed for that purpose. Their row-galleys for pleasure are remark¬ ably fine vessels, being from fifty to eighty feet in length, 13 Cochin China. and composed of fine single planks, each extending from one extremity to the other. They employ various descrip¬ tions of vessels in the coasting trade, in fishing, and in collecting the biche de mer or sea-slug, and the swallows’ nests among the cluster of islands called the Paracels. Many of them are covered with sheds of matting, under which a whole family constantly reside; and others re¬ semble the common prows of the Malays, both in their hulls and rigging. Their foreign traders are built on the plan of the Chinese junks. The religion of the Cochin Chinese is a modification of the widely extended system of Buddha, to whom they offer the firstlings of their flocks and the first fruits of their fields. They have temples filled with the idolatrous images of this deity, and the natives are extremely su¬ perstitious. Besides voluntary offerings, which are made by individuals, a yearly contribution is levied by the go¬ vernment, in order to support a certain number of monas¬ teries, in which the priests invoke the deity for the public welfare. The ancient history of Cochin China, like that of most of the other eastern countries, is very little known ; and it is only from the year 1774 that there are any authentic accounts. The reigning family was at that time expellee. Barrow’s Voyage to Cochin China. 14 • C O C Cochineal from Quinong, the capital, by three brothers, who divided li the country among them. At the time the revolt took Cock-Pit. p]acej t]le young prince Caung Shung, with the queen and big family, escaped by the assistance of a French mission¬ ary named Adran, into a forest; whence the king was compelled to fly, first to Putowai, a desert island in the Gulf of Siam, and afterwards to Siam, which he was ob¬ liged to quit. The son was carried by Adran to France, where he endeavoured to procure assistance; but the re¬ volution breaking out, all these schemes were frustrated. Caung Shung, after remaining in the woods, sustaining many hardships, landed in his own country in 1790, and succeeded in expelling the successors of the usurpers ; and in 1802 he effected the conquest of Tonquin, and es¬ tablished an extensive empire on a solid basis, which has flourished ever since that time. He was greatly aided by the missionary Adran, who had acquired the most perfect mas¬ tery over the language, and compiled a code of laws and a book of instructions for the government of the country. The king, after his death, evinced his gratitude for his services by erecting a monument to his memory, with an inscription in gold characters, an honour confined to the royal family. Several attempts have been made to open an amicable intercourse with the Cochin Chinese; one in 1778 by Mr Hastings, and one in 1804< by an envoy from Canton; but both proved unsuccessful, through the intrigues of French¬ men, by whom the sovereign Caung Shung was complete¬ ly surrounded. In 1822 Mr Craufurd was sent by the East India Company as an envoy to Siam and Cochin China. He was not well received at the Cochin Chinese court, and does not appear to have obtained any peculiar advantages for commerce. Both he and Mr Finlayson, surgeon to the embassy, have published the result of their observations ; and it is from the information procured by them that the previous account is chiefly compiled; also from Barrow’s Account of Cochin China,) the Asiatic Jour¬ nal, and other authorities. COCHINEAL, or Cochineel, a drug used by dyers and others, for producing red colours, especially crimsons and scarlets, and for making carmine; and likewise in medicine as a cardiac, cordial, sudorific, alexipharmic, and febrifuge. The cochineal, in the state in which it is brought to us, is in small bodies of an irregular figure, usually convex, ridged and furrowed on one side, and concave on the other. The colour of the best is a purplish gray, powdered over with a sort of white dust. All that the world knew of it for a long time was, that it was gathered from cer¬ tain plants in Mexico ; and therefore it was naturally sup¬ posed to be a seed, till in the year 1692 Father Plunder gave Pomet an account of its being an animal; and this, though then disregarded, has been confirmed by subse¬ quent observations. COCK, in Zoology, the English name of the males of gallinaceous birds, but more especially used for the com¬ mon dunghill cock. See Ornithology. Cock-Pit, a sort of theatre upon which game-cocks fight. ... It must appear astonishing to every reflecting mind that a mode of diversion so cruel and inhuman as that of cock-fighting should so generally prevail; that not only the ancient Greeks and Romans should have adopted it, but that a practice so savage and heathenish should be continued by Christians of all sorts, and even pursued in these better and more enlightened times. The ancient Greeks and Romans, as is well known, were wont to call all the nations in the world barbarians; yet certainly, if we consider tbe many instances of cruelty practised among them, there was very little reason for the c o c distinction. Human sacrifices were common both to them Cock-Pit. and the barbarians ; and the exposing of infants, the com- bats of men with wild beasts, and of men with men in the gladiatorial scenes, were spectacles of delight and festi¬ vity to these self-styled polished nations. The islanders of Delos, it seems, were great lovers of cock-fighting; and Tanagra, a city in Bceotia, the isle of Rhodes, Chalcis in Euboea, and the country of Media, were famous for their generous and magnanimous race of chickens. There was probably included in the last the kingdom of Persia, whence this kind of poultry was first brought into Greece; and if one may judge of the rest from the fowls of Rhodes and Media, the excellency of the broods at that time consisted in their weight and largeness, the fowls of those countries being heavy and bulky, and of the nature of what our sportsmen call shake- bags or turnpokes. The Greeks, moreover, had some me¬ thod of preparing the birds for battle by feeding, as may be collected from Columella. It should seem that cock-fighting was at first partly a religious and partly a political institution at Athens, and was continued there for the purpose of improving the seeds of valour in the minds of their youth ; but it was afterwards abused and perverted both in Athens and in the other parts of Greece to a common pastime, without any moral, political, or religious intention, just as it is now followed and practised among us. As the Romans were prone to imitate the Greeks, we may expect to find them following the example of the lat¬ ter in this mode of diversion, and in the worst way, name- lv, without any good or laudable motives ; since, when the Romans brought it to Rome, the Greeks had for¬ gotten every thing that was commendable in it, and had already perverted it to a low and unmeaning sport. Signior Hyam thinks the Romans borrowed the pastime from Dardanus, in Asia; but there is little reason in making them go so far for it, when it was so generally followed in Greece, whose customs the Romans were accustomed to borrow and imitate. However, it is probable they did not adopt this practice very early ; and it may be gathered from Columella that the Romans did not use the sport in his time. This author styles cock-fighting a Grecian di¬ version; and speaks of it in terms of ignominy, as an ex¬ pensive amusement, unbecoming the frugal householder, and often attended with the ruin of the parties that fol¬ lowed it. His words are remarkable : “ Nos enim cen- semus instituere vectigal industrii patris familias, non rixo- sarum avium lanistae, cujus plerumque totum patrimonium pignus alese, victor gallinaceus pyctes abstulit;” in which passage he describes the manner, not of the Romans, but of the Greeks, who in his time had converted the di¬ version of cock-fighting into a species of gaming, even to the total ruin of their families, as happens sometimes in England at this day. The Romans, however, at last gave in to the custom, though not till the decline of the empire. The first cause of contention between the two brothers Bassianus and Geta, sons of the emperor Septi- mius Severus, happened, according to Herodian, in their youth, about the fighting of their cocks ; and if this was the first instance of it, it is probable that these princes had seen and learned it in Greece, whither they had often accompanied the emperor their father. It is observable that cocks and quails pitted for the purpose of engaging one another d outrance, or to the last gasp, for diversion, are frequently compared, and vyith much propriety, to gladiators. Hence Pliny’s expression, gallorum, ceu gladiatorum; and that of Columella, rixo- sarum avium lanistce; lanista being the proper term for the master of the gladiators. Consequently one would expect, that when the bloody scenes of the amphitheatre c o c Cock-Pit. were discarded, as happened soon after the Christian re- w-y-^ lio-ion became the establishment of the empire, the wan¬ ton shedding of men’s blood in sport being of too cruel and savage a nature to be patronised and encouraged under such a humane dispensation, one might have ex¬ pected that the oervyofuivia and the aXr/.r^vofLa.via would also have ceased. The fathers of the church are conti¬ nually inveighing against the spectacles of the arena, and upbraiding their adversaries with these, which, indeed, were more unnatural and shocking than a main of cocks; but the latter had a tendency towards infusing the like ferocity and implacability into the dispositions ot men. Besides, this mode of diversion has been in fact the bane and destruction of thousands here, as well as of those la- nistce avium, “ cock-feeders,” mentioned by Columella, whose patrimonial fortunes were totally dissipated and de¬ stroyed by it. The cock is not only a useful animal, but stately in his figure, and magnificent in his plumage. “ Imperitant suo generi,” says Pliny, “ et regnum in quacunque sunt domo, exercent.” Aristophanes compares the cock to the king of Persia; most authors also take notice of the “ specta- tissimum insigne, serratum, quod eorum verticem regiae coronae modo exornat.” His tenderness towards his brood is such, that, contrary to the custom of many other males, he will scratch and provide for them with an assiduity almost equal to that of the hen; and his generosity is so great, that on finding a hoard of meat, he will chuckle the hens together, and, without touching one bit himself, will relinquish the whole of it to them. He was called the bird, *ar by many of the ancients; he was highly es¬ teemed in some countries, and .in othei’s was even held sacred, insomuch that one cannot but regret that a crea¬ ture so useful and noble should, by a strange fatality, be so enormously abused by us. It is true, our aXsxTgvo/Acivia, or the massacre of Shrove Tuesday, is now fast declining, and in a few years, it is to be hoped, will be totally disused; but the cock-pit still continues a reproach to the humanity of Englishmen, and to their religion, the pu¬ rest, the tenderest, and most compassionate of all, not ex¬ cepting even the Brahminical. It is unknown when the pitched battle first entered England, but it was probably brought hither by the Ro¬ mans. This bird existed here before Csesar’s arrival, but no notice of his fighting occurs earlier than the time of William Fitz-Stephen, who wrote the life of Archbishop Becket, in the reign of Henry II., and describes cocking as a sport of school-boys on Shrove Tuesday. From this time at least the diversion, however absurd, and even impious, was continued amongst us. It was followed, though disap¬ proved and prohibited by the 39 Edward III.; also in the reign of Henry VIII., and afterwards in the year 1569. It has by some been called a royal diversion ; and, as every one knows, the cock-pit at Whitehall was erected by a crowned head,’for the more magnificent celebration of it. There was another pit in Drury Lane, and a third in Javin Street. It was prohibited, however, by one of Oli¬ ver’s acts, 31st March 1664. What aggravates the re¬ proach and disgrace are those species of fighting which are called the battle-royal and. the Welsh-main, known no¬ where in the world but there ; neither in China, nor in Per¬ sia, nor in Malacca, nor among the savage tribes in Ame¬ rica. These are scenes so bloody as almost to be too shocking to relate ; and yet, as many may not be ac¬ quainted with the nature of them, it may be proper, for exciting aversion and detestation, to describe them in a few words. In the former an unlimited number of fowls are pitted, and when they have slaughtered one another for the diversion of the lookers-on, the single surviving bird is esteemed the victor, and carries away the prize. c o c is The Welsh-main consists, we shall suppose, of sixteen Cockburne. pairs of cocks ; of these, the sixteen conquerors are pitted a second time, the eight conquerors of these are pitted a third time ; the four conquerors the fourth time, and, last¬ ly, the two conquerors of these are pitted the fifth time; so that thirty-one cocks are sure to be murdered for sport and pleasure. Cock-Pit of a ship of war, the apartment of the sur¬ geon and his mates, being the place where the wounded men are dressed in time of battle, or otherwise. It is si¬ tuated under the lower deck. COCKBU11NE, Mrs Catharine, a most accomplish¬ ed lady and celebrated writer, was the daughter of Captain David Trotter, a native of Scotland, and a naval com¬ mander in the reign of King Charles II. She was born in London on the 16th of August 1679, and baptized in the Protestant church, according to which she was bred up. She gave early marks of her genius ; and learned to write, and also made herself mistress of the French lan¬ guage, by her own application and diligence, without any instructor; but she had some assistance in the study ot the Latin grammar and logic, of which latter she drew up an abstract for her own use. The most serious and import¬ ant subjects, and especially religion, soon engaged her at¬ tention. But notwithstanding her education, her intimacy with several families of distinction of the Roman Catholic persuasion exposed her, while very young, to impressions in favour of that church, which, not being removed by her conferences with some eminent and learned members of the church of England, she embraced the Roman Catholic com¬ munion, in which she continued till the year 1707. In 1695 she produced a tragedy called Agnes de Castro, which was acted at the theatre-royal when she was only in her se¬ venteenth year. The reputation of this performance, and the verses which she addressed to Mr Congreve upon his Mourning Bride in 1697, were probably the foundation of her acquaintance with that celebrated writer. Her second tragedy, Fatal Friendship, was acted in 1698, at the new theatre in Lincoln’s-Inn Fields. This tragedy met with great applause, and is still thought the most perfect ot her dramatic performances. Her dramatic talents not being confined to tragedy, she brought upon the stage, in 1707, a comedy called Love at a Loss, or Most Votes carry it. In the same year she gave the public her third tra¬ gedy, entitled the Unhappy Penitent, acted at the theatre- royal in Drury Lane. But poetry and dramatic writing did not so far engross the thoughts of our author as to pre¬ vent her from sometimes turning them to subjects of a very different nature, and she distinguished herself in an extraordinary manner in defence of Mr Locke’s writings, a female metaphysician being a remarkable phenomenon in the republic of letters. She returned to the exercise of her dramatic genius in 1703, and fixed upon the revolution of Sweden, under Gus- tavus Ericson, for the subject of a tragedy. This tragedy was acted in 1706, at the queen’s theatre in the Haymar- ket. In 1707 her doubts concerning the Roman Catholic religion, which she had so many years professed, having led her to a thorough examination of the grounds of it, by consulting the best books on both sides of the question, and advising with men of the best judgment, the result wras a conviction of the falseness of the pretensions of that church, and a return to that of England, to which she ad¬ hered during the remainder of her life. In 1708 she was married to the Reverend Mr Cockburne, then curate of St Dunstan’s, in Fleet Street, but who afterwards obtained the living of Long Horsely, near Morpeth, in Northumber¬ land. He was a man of considerable abilities ; and, among several things, wrote an account of the Mosaic Deluge, which met with some approbation from the learned. ii 16 Cocker- mouth II. Cockney. c o c Mrs Cockburne’s remarks upon some writers in the con¬ troversy concerning the foundation of moral duty and mo¬ ral obligation were introduced to the world in August 1712, in the Literary Journal, entitled The History of the Works of the Learned. The strength, clearness, and viva¬ city shown in her remarks upon the most abstract and perplexed questions immediately raised the curiosity of all good judges about the concealed writer; and their ad¬ miration was greatly increased when her sex and advanced age were known. Dr Rutherford’s Essay on the Nature and Obligations of Virtue, published in May 1744, soon engaged her thoughts ; and notwithstanding the asthma¬ tic disorder which had seized her many years before, and now left her small intervals of ease, she applied herself to the confutation of that elaborate discourse, and finished it with a spirit, elegance, and perspicuity, equal, if not su¬ perior, to the best of her former writings. The loss of her husband in 1748, in the seventy-first year of his age, was a severe shock to her; and she did not long survive him, having died on the 11th of May 1749, in the seventy-first year of her age, after long sup¬ porting a painful disorder with that resignation^ to the Di¬ vine will which had been the governing principle of her life. Her works are collected into two large volumes 8vo, by Dr Birch, who has prefixed to them an account of her life and writings. COCKERMOUTH, a borough-town in the ward of Al- lerdale, in Cumberland, twenty-five miles frem Carlisle, and 302 from London. It stands near the confluence of the rivers Derwent and Cocker, and contains the remains of an ancient castle, which must have been of great strength. There are manufactures of leather, hats, shalloons, coarse^ woollens, and linens. The town is governed by a bailitt and a jury of sixteen burgesses. The principal market is held on Monday, and there is a smaller one on Saturday. The inhabitants amounted in 1801 to 2865, in 1811 to 2964, and in 1821 to 3790. COCKET is a seal belonging to the king’s custom¬ house, or rather a scroll of parchment sealed and deliver¬ ed by the officers of the customs to merchants, as a war¬ rant that their merchandise has been customed. It is also used for the office where goods transported were first entered and paid their custom, and had a cocket or certificate of discharge. COCKNEY, a very ancient nickname for a citizen of London. Ray interprets it to mean a young person coax¬ ed or cockered, made a wanton or nestle-cock, and deli¬ cately bred and brought up, so as when arrived at man’s estate to be unable to bear the least hardship. According to another writer, it signifies a person ignorant of country economy. The term itself originated as follows : h. young^ citizen having been ridiculed for calling the neighing of a horse laughing, and told that it was called neighing, next morning, on hearing a cock crow, being anxious to show that instruction had not been thrown away upon him, exclaimed to his former instructor, How that cock neighs! from which circumstance the citizens of London have ever since been called cockneighs or cockneys. But whatever may be the origin of the term, we learn from the following verses, attributed to Hugh Bagot, earl of Nor¬ folk, that it was in use in the time of King Henry II. Was I in my castle at Bungay, Fast by the river Wavenay, I would not care for the king of Cockney. The king of the cockney occurs among the regulations for the sports and shows formerly held in the Middle Temple on Childermas day, when he had his officers, a marshal, constable, butler, and others. See Dugdale’s Origines Juridicales, p. 247. COD COCKSWAIN, or Cockson, an officer on board a man Cockswain of war, who has the care of a boat or sloop, and all things II belonging to it. His duty is to be always ready with his boat’s gang or crew, and to man the boat upon all occa¬ sions. He sits in the stern of the boat, which he steers, and has a whistle to call and encourage his men. COCLES, Publius Horatius, a celebrated Roman, who alone opposed the whole army of Porsenna at the head of a bridge, while his companions behind him were cutting off the communication with the opposite shore. When the bridge was destroyed, Codes, though wounded by the darts of the enemy, leapt into the Tiber, and swam across the river with his arms. A brazen statue was raised to him in the temple of Vulcan, by the consul Publicola, as a reward for his eminent services. COCOS, the name of several islands in the Eastern Seas and in the Pacific Ocean. 1. There are two islands of this name which form part of the group of the Andamans, thirty miles south-east of the Great Andaman: 2. Iwo smaU islands near the west coast of Sumatra: 3. A cluster of small uninhabited islands in the Bay of Bengal, about the fourteenth degree of north latitude, which produce large quantities of fine cocoa-nuts: 4. An island in the South Pacific Ocean, visited by Vancouver in his return from the western shores of America, about four miles long and two broad. Long. 273. 6. E. Lat. 5. 35. N. COCYTUS, one of the rivers of hell, according to the theology of the poets. It derives its name otto rov xwxue/f, from groaning and lamenting. Hence Milton, Cocytus named, of lamentation loud, Heard on the rueful stream. Cocytus was a branch of the river Styx, and, according to Horace, flowed with a dull and languid stream. CODAPAHAR, a town of Hindustan, in the district of Bundelcund, twenty-five miles north-north-east from Chatterpoor. Long. 80. 2. E. Lat. 25. 17. N. CODE (codex), a collection of the laws and constitu¬ tions of the Roman emperors, made by order of Justinian. The word comes from the Latin codex, a paper book ; so called a codicibus vel caudicibus arborum, the trunks of trees ; the bark of which being stripped off, served the ancients as material for writing upon. The Code is accounted the second volume of the body of civil law, and contains twelve books; the matter of which is nearly the same with that of the Digest, espe¬ cially the first eight books; but the style is neither so pure, nor the method so accurate, as that of the Digest; and it determines matters of daily use, whereas the Di¬ gest discusses the more abstruse and subtile questions of the law, at the same time giving the opinions of the an¬ cient jurisconsults. Although Justinian’s collection is distinguished by the appellation of Code, by way of emi¬ nence, yet there were codes before his time: as, first, the Gregorian code and Hermogenian code, being a collection of the Roman laws, made by two famous lawyers, Grego¬ rius and Hermogenes, and including the constitutions of the emperors from Hadrian to Diocletian and Maximinus; and, secondly, the Theodosian code, in sixteen books, formed out of the constitutions of the emperors from Con¬ stantine the Great to Theodosius the Younger, and ob¬ served almost all over the West, till it was abrogated by the Justinian code. There are several modern systematic collections of laws called codes, the most celebrated of which is the Code Napoleon, framed under the auspices of Bonaparte, not long after he became emperor of the French. See France and Napoleon. CODEX, in Antiquity, denotes a book or tablet on which the ancients wrote. Codex also denoted a kind of punishment by means of C (E L Codicil a log or block of wood, which slaves who had offended II were made fast to, and obliged to drag along with them; Coelus. byj sometimes they sat on it closely bound. CODICIL is a writing, by way of supplement to a will, when any thing is omitted that the testator wishes to have added, or desires to be explained, altered, or recalled. CODIFICATION. This term has in recent times been used to denote the formation of systematic codes, pro¬ viding simultaneously for the whole objects of legislation. See Legislation. CODLIN, an apple useful in the kitchen, being the most proper for baking. CODLING, an appellation given to the young cod-fish. CODON (KwSwv), in Antiquity, a cymbal, or rather little brass bell, resembling the head of a poppy. Codons were fastened to the trappings and bridles of horses. CODRINGTON, Christopher, abrave English officer, and not less distinguished for learning than benevolence, was born at Barbadoes in the year 1668, and educated at Oxford ; after which he betook bimself to the army, and by his merit and courage soon recommended himself to the favour of King William, who made him a captain in the first regiment of foot-guards. He was at the siege of Na¬ mur in 1695 ; and, upon the conclusion of the peace of Ryswick, was made captain-general and governor-in-chief of the Leeward and Caribbee Islands. He died at Barba¬ does on the 7th April 1710, and was buried there the day after; but his body was subsequently brought over to England, and interred, on the 19th of June 1716, in the chapel of All-Souls College, Oxford. By his last will, he bequeathed his plantations in Barbadoes, and part of the island of Barbuda, to the Society for Propagating the Gos¬ pel in Foreign Parts ; and left a noble legacy to All-Souls College, of which he had been a fellow. This legacy con¬ sisted of his library, which was valued at L.6000; and of L.10,000 in funds, which was to be laid out, L.6000 in building a library, and L.4000 in furnishing it with books. He wrote some of the poems in the Musce Anglicance, printed at London in 1741. CODRUS, the seventeenth and last king of Athens, son of Melanthus. When the Heraclidae made war against Athens, the oracle said that the victory would be granted to the nation whose king was killed in battle. Upon this the Heraclidae gave strict orders to spare the life of Cod- rus ; but the patriotic king disguised himself, and attacked one of the enemy, by whom he was killed. The Athe¬ nians then obtained the victory, and Codrus was deserv¬ edly called the father of his country. He reigned twenty- one years; but the era of this traditional monarch is un¬ certain. In order to honour his memory the more, the Athenians passed a resolution that no man after Codrus should reign in Athens under the title of king. CO-EFFICIENTS, in Algebra, are the numbers or known quantities which are put before letters or quanti¬ ties, whether known or unknown, and into which they are supposed to be multiplied. Thus, in 3x, ax, or bx, 3, a, and b are the co-efficients of x ; and in 6a, 96, 6 and 9 are the co-efficients of a and b. See Algebra. CGXOSYRIA, in the larger sense of the word, was the name of the whole country to the southward of Seleu- cia, and extending as far as Egypt and Arabia; but this word is principally applied to the valley situated between Libanus and Anti-Libanus. This word occurs only in the apocryphal writings of the Old Testament. CCELUS (Heaven), in Pagan Mythology, the son of iEther and Dies, or Air and Day. According to Hesiod, he married Terra or the Earth, on whom he begat Aurea or the Mountains, the Ocean, &c. But having at length imprisoned the Cyclops, who were also his children, his wife, offended at this proceeding, incited her son Saturn VOL. VII. e o F 17 to revenge the injury done to his brothers; and by her Coemptio- assistance the latter bound and castrated Ccelus, when nales the blood which flowed from the wound produced the ^0g-ea three furies, the giants, and the wood-nymphs ; while the genital parts being thrown into the sea, impregnated the waters, and formed the goddess Venus. This deity was called by the Greeks Uranus. CCEMETERY. See Cemetery. COEMPTIONALES, among the Romans, an appella¬ tion given to old slaves, who were sold in a lot with others, because they could not be sold alone. CCENOBITE, a religious person who lives in a convent, or in community, under a certain rule ; in opposition to anchoret or hermit, who lives in solitude. The word comes from the Greek xo/w>s, communis, and /3/o;, vita, life. Cas- sian makes this difference between a convent and a monas¬ tery, that the latter may be applied to the residence of a single religious person or recluse, whereas the convent im¬ plies coenobites, or numbers of religious living in common. Fleury speaks of three kinds of monks in Egypt; ancho¬ rets, who lived in solitude ; coenobites, who continued to live in community; and sarrabaites, who were a kind of monks- errant, strolling from place to place. He refers the insti¬ tution of coenobites to the times of the apostles, and makes it a kind of imitation of the ordinary lives of the faithful at Jerusalem. But St Pachomius is ordinarily owned the institutor of the coenobite life, as being the first who gave a rule to any community. CCENOBIUM (xo/vopiov), the state of living in a so¬ ciety or community where all things are common. Py¬ thagoras is believed to be the author or institutor of this kind of life ; his disciples, though some hundreds in num¬ ber, being obliged to give up all their private estates, to be added to the common stock. The Essenians among the Jews, and the Platonists among the Greeks, are said to have lived in the same manner. Many of the Christians also have thought this the most perfect kind of society, as being that in which Christ and his apostles chose to live. COFFEA, the Coffee-Tree. The flowers, which are produced in clusters at the root of the leaves, are of a pure white, and have a very grateful odour. The fruit, which is the only useful part, resembles a cherry. When it comes to be of a deep red, it is gathered for the mill, in order to be manufactured into those coffee-beans now so generally known. The mill is composed of two wooden rollers, fur¬ nished with iron plates eighteen inches long and ten or twelve in diameter. These movable rollers are made to approach a third, which is fixed, and which is called the chops. Above the rollers is a hopper, in which is put the cofiee, whence it falls between the rollers and the chops, where it is stripped of its first skin, and divided into two parts, as may be seen by its form after it has under¬ gone this operation, being flat on the one side and round on the other. From this machine it falls into a brass sieve, where the skin drops between the wires, while the fruit slides over them into baskets placed ready to receive it. It is then thrown into a vessel full of water, where it soaks for one night, and is afterwards thoroughly washed. When the whole is finished and well dried, it is put into another machine called the peeling-mill. This is a wooden grinder, turned vertically upon its trundle by a mule or horse. In passing over the coffee it takes off the parchment, or thin skin, which detaches itself from the berry in proportion as it grows dry. The parchment being removed, it is taken out of this mill to be put into another, which is called the winnowing-mill. This machine is provided with four pieces of tin fixed upon an axle, which is turned by a slave with considerable force ; and the wind produced by the motion of these plates clears the coffee of all the pellicles that are mixed with it. It is afterwards put upon a table, where c 18 Coffee. C O F the broken berries, and any filth that may remain among them, are separated by negroes; after which the coffee is fit for sale. _ . . „ The coffee-tree is cultivated in Arabia, Persia, the Past Indies, the Isle of Bourbon, and several parts of America and the West Indies. It is also raised in botanic gardens in several parts of Europe. It delights particularly in hills C O F tolerated, if not legalised. Thevenot the traveller was the first who brought it into France; and a Greek servant, named Pasqua, brought into England by Mr Daniel Ed¬ wards, a Turkey merchant, in 1652, first commenced the profession of coffee-man, and introduced the beverage into this island. . . Coffee Trade. From the great increase in the con- Coff’ee Trade II Coffer. in several parts of Purope. it ciengnis pa.... ;n this as well as in other countries, the and mountains, where its root is almost always dry, and its sumptio am0unt of capital and labour head frequently watered with gentle showers. It prefers value of the article, QUa titv 0f shipping a western aspect, and ploughed ground without any ap- emnloved in its production, and the quantity PP. S pearance of grass. The plants should be placed at eigll t feet distance from each other, and in holes twelve or fi - teen feet deep. If left to themselves, they would, as al¬ ready observed, rise to the height of sixteen or eighteen feet; but they are generally stinted to five, for the conve¬ nience of gathering their fruit with the greater ease. I bus dwarfed, they extend their branches so that they cover the whole spot round about them; and they begin to yield fruit the third year, but are not m full bearing till the fifth. With the same infirmities that most other trees are subject to, they are likewise in danger of being de¬ stroyed by a worm, or by the scorching rays of the sun. The hills where the coffee-trees are found have generally a gravelly or chalky bottom. In the latter soil it lan¬ guishes for sometime and then dies; in the former, its roots, which seldom fail to strike between stones, obtain nourishment, and keep the tree alive and fruitful for thirty years. This is nearly the period for plants of the coffee- tree. The proprietor, at the end of this period, not only finds himself without trees, but has his land so reduced that it is not fit for any kind of culture ; and unless he be so situated that he can break up a spot of virgin land, to make himself amends for that which is totally exhausted by the coffee-trees, his loss is irreparable. Coffee also denotes the drink prepared from these berries, which has been familiar in Europe for a hundred years, and among the Turks for a hundred and seventy. Its origin is not well known. Some ascribe it to the prior of a monastery, who being informed by a goatherd that his cattle, when they happened to browse on the tree, remained awake and capered all night, became curious to prove its virtue ; and accordingly he first tried it on his monks, to prevent their sleeping at matins. Others, fol¬ lowing Schehabeddin, refer the invention of coffee to the Persians, from whom it was learned in the fifteenth cen¬ tury by Gemaleddin, mufti of Aden, a city near the mouth of the Red Sea, and who having tried its virtues himself, and found that it dissipated the fumes which oppressed the head, inspired joy, opened the bowels, and prevented sleep, without producing any countervailing inconvenience, first recommended it to his dervises, with whom he used to spend the night in prayer; and their example brought coffee into vogue at Aden ; the professors of the law, arti- travellers, in short, every body at Aden, drinking It next passed to Mecca, where the devotees first employed in its production, a— * . required for its transport, it has become a commodity of great commercial importance. The duties which have been levied upon it have varied considerably at different periods. In 1819 the duty was raised from sevenpence to one shilling per lb.; and the quantity entered for home consumption in 1824 was 7,993,041 lbs., yielding a re¬ venue of L. 407,544. 4s. 3d. In 1824, however, the duty was lowered to sixpence per lb., and the quantity en¬ tered for home consumption, in 1825, was 10,766,11.4 lbs In 1828 it increased to 16,522,422 lbs., and at pre¬ sent may be estimated at 22,000,000 lbs., producing a re¬ venue of about L. 580,000. In the year ending January 1831, the quantity imported into the united kingdom from all parts was 40,952,163 lbs., and the quantity exported to all parts 20,087,994 lbs. The following is an estimate of the annual exports of coffee from the principal places where it is produced, and of its annual consumption in those countries into which it is imported from abroad at the present time : Exports. Tons. Mocha, Hodeida, and other Arabian ports 12,000 Sumatra, and other parts of India 6,000 Brazil and the Spanish Main n>o British West India colonies ^’nno Dutch West India colonies *,’uuu French West India colonies, and the Isle of Bourbon * 8’0U0 Total.... 123,500 Consumption. Tons. Great Britain Inonn Netherlands and Holland .••••••••••••; ^000 Germany, and countries round the Baltic.....-32,000 France, Spain, Italy, Turkey in Europe, the ^ ^ Levant, America. .18,500 sans, C°11 ^pproximation”to the truth as can be obtained. . a z. « omiavo ^pnrpssure or sink- Total 129,200 coffee. It next passed to Mecca, wnere me The discrepancy here between the supply and the de- then the rest of the people, took coffee, from Arabia i I -J t0 be acc0unted for from the S it Si S,; citation of coffee. The above, however, is as to Syria and Constantinople. Ihe dervises declaimed against it from the Alcoran, which declares that coal is not of the number of things created by God for food ; and the mufti accordingly ordered the coffee-houses to be shut; but his successor declaring coffee not to be coal, they were again opened. During the war in Candia, the assemblies of newsmongers making too free with state affairs, the grand visier Cuproh suppressed the coffee¬ houses at Constantinople; but this did not prevent tie public from using this beverage; and it has ever since been close an — . , COFFER, in Architecture, a square depressure or sink ing in each interval between the modillions of the Conn thian cornice, and ordinarily filled up with a rose, some times with a pomegranate or other enrichment. Coffer, in Fortification, denotes a hollow lodgement athwart a dry moat, from six to seven feet deep and from sixteen to eighteen broad; the upper part made of pieces of timber raised two feet above the level of the moat, wine little elevation has hurdles laden with earth for its cover- C O F Coffin, ing, and serves as a parapet with embrasures. The coffer js nearly the same with the caponiere ; excepting that the last is sometimes made beyond the counterscarp on the glacis, and the coffer always in the moat, taking up its whole breadth, which the caponiere does not. It differs from the traverse and gallery in this, that the latter are made by the besiegers, and the coffer by the besieged. The besieged generally make use of coffers to repulse the besiegers when they endeavour to pass the ditch. To save themselves from the fire of these coffers, the besiegers throw up earth on the side towards the coffer. COFFIN, the chest in which dead bodies are interred. The sepulchral honours paid to the manes of departed friends in ancient times demand attention, and are ex¬ tremely curious. Their being put into a coffin was con¬ sidered as a mark of the highest distinction. With us, however, the poorest people are provided with coffins; for, if the relations cannot afford them, the parish is at the expense. On the contrary, in the East, coffins are not made use of; Turks and Christians, as Thevenot assures us, agreeing in this. The ancient Jews seem to have buried their dead in the same manner; neither was the body of our Lord, it should seem, put into a coffin ; nor that of Elisha (2d Kings, xiii. 21), whose bones were touched by the corpse that was let down a little after into his sepul¬ chre. However, all agree that coffins were anciently made use of in Egypt; and antique coffins of stone and syca¬ more wood are still to be seen in that country, not to mention those said to have been made of a kind of paste¬ board, formed by folding or gluing together many folds of cloth curiously plastered, and then painted with hierogly¬ phics. The sacred historian expressly observes of Joseph, that he was not only embalmed, but put into a coffin too, both of which were in use among the Egyptians. Bishop Patrick, in his commentary on the passage just referred to, takes notice of these Egyptian coffins of syca¬ more wood and of pasteboard; but he does not mention the contrary usage in the neighbouring countries, which was requisite in order fully to illustrate the text; though even this, perhaps, would not have conveyed the whole idea of the sacred author. Maillet apprehends that all were not inclosed in coffins who were laid in the Egyptian reposito¬ ries of the dead, but that it was an honour appropriated to persons of consideration; for after having given an account of several niches found in those chambers of death, he adds, “ But it must not be imagined that the bodies de¬ posited in these gloomy apartments were all inclosed in chests and placed in niches. The greatest part were simply embalmed and swathed after that manner which every one hath some notion of; after which they laid them one by the side of another without any ceremony. Some were even laid in these tombs without any embalming at all, or such a slight one that there remains nothing of them in the linen in which they were wrapped but the bones, and these half rotten. It is probable that each considerable family had one of these burial places to themselves; that the niches were designed for the bodies of the heads of the families; and that those of their domestics or slaves had no other care taken of them than the laying them on the ground, after having them embalmed, or even without that, which undoubtedly was also all that was done even to the heads of families of less distinction.” After this he gives an account of a mode of burial practised anciently in that country, which consisted in placing the bodies, after they had been swathed, upon a layer of charcoal, and covering them with a mat, under a depth of sand of seven or eight feet. That coffins then were not universally used in Egypt, is C O II 19 evident from these accounts; and probably none but per- Coggeshall sons of distinction were buried in them. It is also reason- II . able to believe, that in times so remote as those of Joseph C‘^'J they might be much less common than afterwards; and * consequently, that Joseph’s being put in a coffin in Egypt might be mentioned with a design to express the great honours which the Egyptians showed him at his death, being interred after the most sumptuous manner in use among that people. Agreeably to this, the Septuagint version, which was made for Egyptians, seems to repre¬ sent coffins as a mark of distinction. It is no objection to this account, that the widow of Nain’s son is represented as carried forth to be buried in a the whole undiminished cohesion of the stratum. We may therefore conclude in general, that the contractile force is one third of the whole cohesive force of a stratum of ■par¬ ticles, equal in thickness to the interval to which the primitive equable cohesion extends ; and if the cohesive force be not equable, we may take the interval which represents its mean extent as affording a result almost equally accurate. In the case of water, the tension of each inch of the surface is somewhat less than three grains, consequently we may consider the whole cohesive and repulsive force of the super¬ ficial stratum as equal to about nine grains. Now since there is reason to suppose the corpuscular forces of a section of a square inch of water to be equivalent to the weight of a column about 750,000 feet high, at least if we allow the cohesion to be independent of the density, their magni¬ tude will be expressed by 252*5 X 750,000 X 12 grains, which is to 9 as 252*5 X 1,000,000 to 1; consequently the extent of the cohesive force must be limited to about the 250 millionth of an inch; nor is it very probable that any error in the suppositions adopted can possibly have so far invalidated this result as to have made it very many times greater or less than the truth. Within similar limits of uncertainty we may obtain something like a conjectural estimate of the mutual dis¬ tance of the particles of vapours* and even of the actual magnitude of the elementary atoms of liquids, as supposed to be nearly in contact with each other; for if the distance at which the force of cohesion begins is constant at the same temperature, and if the particles of steam are con¬ densed when they approach within this distance, it follows that at 60° of Fahrenheit the distance of the particles of pure aqueous vapour is about the 250 millionth of an inch ; and since the density of this vapour is about one sixty thousandth of that of water, the distance of the par¬ ticles must be about forty times as great; consequent¬ ly the mutual distance of the particles of water must be about the ten thousand millionth of an inch. It is true that the result of this calculation will differ considerably, according to the temperature of the substances compared; for the phenomena of capillary action, which depend on the superficial tension, vary much less with the tempera¬ ture than the density of vapour at the point of precipita¬ tion : thus an elevation of temperature amounting to a de¬ gree of Fahrenheit lessens the force of elasticity about one ten thousandth, the superficial tension about one thou¬ sandth, and the distance of the particles at the point of deposition about a hundredth. This discordance does not, however, wholly invalidate the general tenor of the con¬ clusion ; nor will the diversity resulting from it be greater than that of the actual measurements of many minute ob¬ jects, as reported by different observers; for example, those of the red particles of blood, the diameter of which may be considered as about two million times as great as that of the elementary particles of water, so that each would contain eight or ten trillions of particles of water at the utmost. If we supposed the excess of the repulsive force of liquids above that of elastic fluids to depend rather on a variation of the law of the force than of the number of particles co-operating with each other, the extent of the force of cohesion would only be reduced to about two thirds ; and, on the whole, it appears tolerably safe to con¬ clude, that whatever errors may have affected the deter¬ mination, the diameter or distance of the particles of wa- Cohesion, ter is between the two thousand and the ten thousand millionth of an inch. Sect. II.—Helalions of Heterogeneous Substances. We must now return from this conjectural digression to the regions of strict mathematical argument, and inquire into the effect of the contact of substances of different kinds on the tension of their common sufaces, and on the conditions required for their equilibrium. Whatever doubts there may be respecting the variation of the number of particles co-operating when the actual density of the sub¬ stance is changed, there can be none respecting the con¬ sequence of the contact of two similar substances of dif¬ ferent densities ; for the less dense must necessarily neu¬ tralise the effects of an equivalent portion of the particles of the more dense, so as to prevent their being concerned in producing any contractility in the common surface; and the remainder, acting at the same interval as when the substance remained single, must obviously produce an ef¬ fect proportional to the square of the number of particles concerned, that is, of the difference of the densities of the substances. This effect may be experimentally illustrat¬ ed by introducing a minute quantity of oil on the surface of the water contained in a capillary tube ; the joint ele¬ vation, instead of being increased, as it ought to be accord¬ ing to Mr Laplace, is very conspicuously diminished ; and it is obvious, that since the capillary powers are represent¬ ed by the squares of the density of oil and of its difference from that of water, their sum must be less than the capil¬ lary power of water, which is proportional to the square of the sum of the separate quantities. Upon these principles we may determine the conditions of equilibrium of several different substances meeting in the same point, neglecting for a moment the consideration of solidity or fluidity, as well as that of gravitation, in es¬ timating the contractile powers of the surfaces, and their angular situations. We suppose then three liquids, of which the densities are A, B, and C, to meet in a line si¬ tuated in the plane termination of the first; the contrac¬ tile forces of the surfaces will then be expressed by (A—B)2, (A—C)2, and (B—C)2; and if these liquids be so arranged as to hold each other in equilibrium, whether with or without the assistance of any external force, the equilibrium will not be destroyed by the congelation of the first of the liquids, so that it may constitute a solid. Now, unless the joint surface of the second and third coin¬ cides in direction with that of the first, it cannot be held in equilibrium by the contractility of this surface alone ; but supposing these two forces to be so combined as to produce a result perpendicular to the surface of the first substance, this force may be resisted by its direct attrac¬ tion ; the forces which tend to cause the oblique surface to move either way on it, balancing each other, and the perpendicular attraction being counteracted by some ex¬ ternal force holding the solid in its situation. Consequent¬ ly the force expressed by (B—C)2, reduced in the propor¬ tion of the radius to the cosine of the angle, must become equal to the difference of the forces (A—B)2and (A—C)2; and if the radius be called unity, this cosine must be (A—C)2—(A—B)2 2 AB—2 AC—(B2—C2) (B—C)2 ~ (B—C)2 — - ^ which is the excess of twice the density Xj-" Lv of the solid above the sum of the densities of the liquids, divided by the difference of these densities; and when there is only one liquid, and C = 0, this cosine becomes COHESION. Cohesion. 2A ^ vanishing when 2 A = B, and the density of the solid is half of that of the liquid, the angle then becoming a right one, as Clairaut long ago inferred from other consi¬ derations. Supposing the attractive density of the solid to be very small, the cosine will approach to — 1, and the antrle of the liquid to two right angles ; and on the other hand, when A becomes equal to B, the cosine will be 1, and the angle will be evanescent, the surface of the liquid coinciding in direction with that of the solid. If the den¬ sity A be still further increased, the angle cannot undergo any further alteration, and the excess of force will only tend to spread the liquid more rapidly on the solid, so that a thin film would always be found on its surface, unless it were removed by evaporation, or unless its foimation woie prevented by some unknown circumstance which seems to lessen the intimate nature of the contact of liquids with dry solids. For the case of glass and mercury we find about l, and the cosine — f, which corresponds to an angle of 139° ; and if we add a second liquid, the expres- sion will become which will always indicate an angle less than 180°, as long as C remains less than 1, or as long as the liquid added is less dense than glass. There must, therefore, have been a slight inaccuracy in the ob¬ servation mentioned by Mr Laplace, that the suiface of mercury contained in a glass tube becomes hemispherical under water; and if we could obtain an exact measure¬ ment of the angle assumed by the mercury under these circumstances, we should at once be able to infer from it the comparative attractive density of w'ater and glass, which has not yet been ascertained, although it might be deduced with equal ease from the comparative height of a portion of mercury contained in two unequal branches of the same tube, observed in the air and under water. The cosine is more exactly — '735, in the case of the contact of glass and mercury, and -y- = "265, whence y- = which is a disproportion somewhat greater than that of the specific gravities; but it must probably vary with the va¬ rious kinds of glass employed. There is also another mode of determining the angle of contact of a solid with a single liquid, which has been in¬ geniously suggested by Mr Laplace: it is derived from the principle of the invariability of the curvature ol the surface at a given elevation; and its results agree with those which we have already obtained, except that it does not appear to be applicable to the case of more than one liquid in contact with the given solid. Supposing a capil¬ lary tube to be partially inserted into a liquid, if we ima¬ gine it to be continued into a similar tube of the liquid, leaving a cylinder or column of indefinite length in the common cavity, then the action of either tube upon the liquid immediately within it will have no tendency either to elevate or to depress the column ; but the attraction of the portion of the tube above the column will tend to raise it with a certain force, and the lower end of the tube will exert an equal force upon the portion of the column im¬ mediately below it; and this double force will only be op¬ posed by the single attraction of the liquid continuation of the tube drawing down the column above it, so that the weight of the column suspended will be as the excess of twice the attractive force of the solid above that of the li¬ quid. Now supposing two plates of the solid in question to approach very near each other, so that the elevation may be very great in comparison with the radius of cur¬ vature of the surface, which in this case may be consider- 23 ed as uniform, the weight suspended will then be simply as Cohesion, the elevation, which will be the measure of the efficient -v'w' attractive force, and will vary with it, if we suppose the nature of the solid to vary, the radius of curvature vary¬ ing in the inverse ratio of the elevation ; but the radius of curvature is to half the distance of the plates, as unity to the numerical sine of half the angular extent of the sur¬ face, or the cosine of the angle of the liquid, so that this cosine will be inversely as the radius, or directly as the elevation, that is, as the efficient attractive force, which is expressed by 2 A — B becoming = — 1 when A va- 2 B nishes, and consequently being always equal to •—^ , as we have already found from other considerations. If we wished to extend this mode of reasoning to the effect of a repulsive force counteracting the cohesion, we should only have to suppose the diameter of the tube diminished on each side by the interval which is the limit of the re¬ pulsion, since beyond this the repulsion could not inter¬ fere with the truth of the conclusions, for want of any particles situated in the given directions near enough to each other to exhibit it; and within the stratum more immediately in contact with the solid, the forces may be supposed to balance each other by continuing their action along its surface until they are opposed by similar forces on the outside of the tube or elsewhere; and indeed such a repulsive stratum seems in many cases to be required for affording a support to the extended surface of the liquid when the solid does not project beyond it. It may also be shown, in a manner nearly similar, by supposing the column to be divided into concentric cylinders, that the superficial curvature of the liquid will not affect the truth of the conclusion. Sect. III.—Forms of Surfaces of Simple Curvature. We may now proceed upon the principle admitted by all parties, of a hydrostatic pressure proportional to the curvature of the surface of the liquid, which is equivalent to a uniform tension of that surface, and which either sup¬ ports the weight or pressure of the fluid within its conca¬ vity, or suspends an equal column from its convexity, whe¬ ther with the assistance of the pressure of the atmosphere, or more simply by the immediate effect of the same cohe¬ sion that is capable of retaining the mercury of the baro¬ meter in contact with the summit of the tube; and on this foundation we may investigate the properties of the forms assumed by the surface, first considering the cases of simple curvature which are analogous to some of the va¬ rieties of the elastic curve, and next those of the surfaces having an axis of revolution, which will necessarily involve us in still more complicated calculations. A. Let the height of the curve at its origin be a, the hori¬ zontal absciss z, the vertical ordinate y, the sine of the angu¬ lar elevation of the surface s, the versed sine v, and the rect¬ angle contained by the ordinate and the radius of simple cur¬ vature r ; then the area of the curve will be rs, and y — (a2 2rv). The fluxion of the curve z is jointly as the radius of cur¬ vature and as the fluxion of the angle of elevation, which V we may call w, or dz zz — dtc, and da; — v/ (1 s2) dz _ ^/n — s2)- &w ; but (1 s2) dw = ds, conse- •V \ y y quently da: zz - ds, and ydx, the fluxion of the area, be¬ comes equal to rds, and the area itself to rs. In order to 24 COHESION. Cohesion. find w, we have dw = sds: s - dw — - dv ; whence ydy y y — rdv, and y1 = 2rv + aa, y becoming equal to a when v vanishes. It may also be immediately inferred, that the area of the curve must vary as the sine of the inclination of the surface, from considering that, according to the princi¬ ples of the resolution of forces, the tension being uniform, the weight which it supports must be proportional to that sine. Scholium. The value of r for water at common tem¬ peratures is about one hundredth of a square inch, accord¬ ing to the results of a variety of experiments compared by Dr Young; or, more correctly, if we adopt the more recent measurement of Mr Gay Lussac, 'OHS ; for alco¬ hol Mr Gay Lussac’s experiments give r — •0047, and for mercury r — ’0051. Dr Young had employed *005 for mercury, a number which appears to be so near the truth that it may still be retained, for the greater conve¬ nience of calculation. Hence, in a very wide vessel, the smallest ordinate a being supposed evanescent, and y — ^{Zrv) = T516 yV, the height of the water rising against the side of the vessel, when =r 1, will be ’1516 ; and the utmost height at which the water will adhere to a horizontal surface, raised above its general level, will be 2 ^/r — ’2145. For mercury, y becomes in these circum¬ stances y'(’010247) = *101 and if « = ’735, v — '322, and the depression of the surface in contact with a verti¬ cal surface of glass becomes *0573; and again, when v — F735, as in the case of a large portion of mercury lying on a plate of glass, the height y is *133 ; and if the glass had no attraction at all for mercury, v would be¬ come 2, and the height •1428. The actual tension ot the surface of mercury is to that of water as •0051 X 13’6, or -06936 to *0115 ; that is, a little more than six times as great; while the angle of contact of mercury with glass, which is more attractive than water, would have led us to expect a disproportion somewhat greater. If we take a mean of these results, and estimate it at seven times, the value of yV will be reduced by immersing mercury stand- , . . , . ^ 6 , 13-6 . mg on glass into water in the ratio or - X v yglg* since the buoyant effect of the water increases the value of r, so that \/(2r) will be ’09, and the angle approaching to 180°, the height will be about *127. B. When the curve is infinite, the absciss x becomes — 1 y r HL ‘—j- ^777“ —4 +v/('D — if ), reckoning from the greatest ordinate y — 2 /fir ; and the excess of the length of the curve above the absciss is 2 nfir — y'(4r —y1). diet 1 — (u In this case, a being = 0, y2 = 2rv ; but ^ ^— 1 — v 2r — 2rv 2r — yy find x = -5328 /fr ; and where the inclination amounts Cohesion to a second, x = 11-28 yr; for example, in the case of water, yr being T072, the latter value of x will become 1-21, and the former -056; so that the surface must be considered as sensibly inclined to the horizon at the dis¬ tance of more than an inch from the vessel, but scarcely at an inch and a half; and for mercury these distances will be two thirds as great. This circumstance must not be forgotten when mercury is employed for an artificial hori¬ zon, although, where the vessel is circular, the surface be¬ comes horizontal at its centre ; and in other parts the in¬ clination is materially affected by the double curvature. Corollary 2. The form of the surface coincides in this case with that of an elastic bar or a slender spring of in¬ finite length, supposed to be bent by a weight fixed to its extremity; since the curvature of such a spring must al¬ ways be proportional to its distance from the vertical line passing through the weight. We may therefore deduce from this proposition the correction required for the length of a pendulum like Mr Whitehurst’s, consisting of a heavy ball suspended by a very fine wire. Now the radius of curvature of the spring is Bridge, Prop. G) ; the modulus of elasticity, of which M is the weight, being for iron or steel about 10,000,000 feet in height: and since eighty inches of the wire weighed three grains, the thick¬ ness a, supposing it to have been one third or two fifths of the breadth, as is usual in wire flattened for hair springs, must have been about fij-j of an inch ; the weight f was 12,251 grains ; and the weight of M of ten million feet must heenA X 12 X 10000000 grains; consequently, 3 X 10000000 1000 y(2v — vv) y(4r — 2rr)y(2n/) V (4r- and, by the common rules for finding fluents, x = 2 yr — y(4r — yy} ■yy)y 2r 4 yr y2), which vanishes HL -7- ( + y (4r 2 y^ + y(4r — yy) K when y — 2 yr ; and for the length of the curve, since dz 1 1 2r _ . . c-; subtracting the y&y dy s y(2r — vv) y(4r—3/7/)?/ former fluxional co-efficient from this, we have ... . y(4r yy) for the fluxion of the difference; and the fluent of this is — a/ 4r — y2). Corollary 1. Hence, where the curve is vertical, we have Mere! 12/^ “ 80 X 12251 X 375 X 375y “ 12251 X 375y 1 . . r . = which is analogous to - in these propositions ; fynjunty y consequently yr — ; and the whole value of y(4r—y1) from y — 2 yr to ?/ = 0, is ^ of an inch. Now, sup¬ posing the spring to have been firmly fixed at the axis of vibration, the excess of its length above the ordinate will always be measured by 2 yr — y(4r — y2); but y(4r — y2) ~ y(4r— 2rv) — yr y(4— 2v), which is the chord of the supplement of the arc of vibration in the circle of which the radius is yr = fg; and the ball will be drawn above its path to a height equal to the distance between this circle and another of twice the diameter, touching it at its lowest point; but a perpendicular falling from this point on the wire would always be found in a cir¬ cle twice as much curved as the first circle ; and if it were made the centre of vibration, the ball would always be raised twice as far above its original path as the distance between the first circle and the second, which is the mea¬ sure of the effect of the curvature ; so that the pendulum must be supposed to be shortened half as much as this; that is, in the present instance, of an inch. If, how¬ ever, the spring remained, in Mr Whitehurst’s experiments, at liberty to turn within the clip, and was firmly fixed at a considerable distance above, the variation of the length must have been only that which belongs to half of the arc of vibration ; that is, one fourth as great as in the former case, since the versed sine is initially as the square of the arc ; but since it would affect the spring both above and below the clip, it would be doubled from this cause, and would amount to 2^ of an inch; so that the true correc¬ tion would be liable to vary from -00735 to -00367, accord¬ ing to the mode of fixing the wire. But since this error must have affected both Mr Whitehurst’s pendulums in an equal degree, and the result was deduced from the dif- COHESION. Cohesion, ference, and not the proportion of the lengths, it is free ^ da? _ 2r -{- aa — yy /l , 1 a2 , ^ from any inaccuracy on this account. The calculation, anu &y~ y'(cc—yy) ' 2 * p”’* 4-2 ’ hov/ever, sufficiently proves the necessity of attending to T, f t the effect of different modes of fixing the spring, in order 5 ’ that no variation maybe made in the different experi- C ^ y*) ; C mpnta rnmnarpd without a nrnnpr pnrrpctinn. The elas- \/ (cc—yy) ^ y \/ (cc — yy) ments compared without a proper correction, ticity of such a wire as Mr Whitehurst employed, could not have produced any sensible error, by co-operating with the force of gravitation, since it did not amount to one , two-millionth part of the weight of the ball. ^ C. The relation of the ordinate and absciss may be gene rally expressed by means of an infinite series. p When the curve is concave towards the absciss through- J7p~/7 may be compared with the J ^ V {cc —yy) - hl c—^(cc—yy) - L. c + V (cc—yy) r &y _ Vjcc—yy) - J if k/(cc — if V(cc—yy) dy out its extent, the ordinate may lengths of hyperbolic and elliptic arcs, as Maclaurin has - - - - shown with respect to the elastic curve {Fluxions, § 928) but his solution fails in the more ordinary cases of the problem ; and even where it is applicable, the calculation is very little facilitated by it. Segner has made use of two different forms of infinite series, each having its pe¬ culiar advantages with respect to convergence in parti¬ cular cases; and other forms may be found, which will sometimes be more convenient than either of these. The 1 — v f V{cc 5 ™—yy) ( dy / —yy) \ 2c cyy 1 , 3 8c4?/2 5 2cc L; 4c2?/4 1 6c2yj + d a ky bit!;/ ) */{2v — vv) 1 value of the cotangent ^ being in general 2r— 2rv 2r—yy + aa ~\/(4r—2rc)y/'(2rc)~y,(4r—yy + aa) \/{yy — ««)’ we may retain either of these fractions, and expand the other by means of the binomial theorem. 1. In the first place, making 4r -f- a2 — c2, we have (C2 —y2) -i = i + c + f_,]L c3 ^ 4-2 , da; and -7- — dy f 8-2-3 ff c7 2r aa V (yy 1 aa /\ 1 — aa)\c 2 " 4-2 sJ} ■ 1 if + 2’^ + 4*2 ?f_ c6 + •) Pi V(yy—aa) v Now, in order to find the fluents of the separate terms, we have = HL (y + ^ Cw - aa] ); and calling this logarithm L, /»“vS=7rr'',w-«+Ti, ’if barif — ^ L; and by combining these fluents we obtain a second series for x. 3. These series may be employed with advantage where the initial ordinate is very small, the one being more con¬ venient for the upper, and the other for the lower part of the curve ; but where the elevation a is more consider¬ able, the form of the curve will be more readily deter¬ mined by means of fluents derived from circular arcs. Beginning with the expressions ^7)’ anc^ ?/2 = a2 + 2rv, we may seek for a value of x in terms of v : and since 2i/dij — 2rdv, dy =-dv = , — , ^ ^ ^ y V{aa+2rvy and dx=.7= —7 • ,7 —r. The binomial V (2c — vv) V\aa + 2rv) 1 (aa 2rv) 2 may then be expanded into a series of integral powers of v, and the fluents may be found by means of the equations^^^~7^= e/lT =: w’ ^le arc /vdv — = s—w. = '4*' + A ■ 8)■8w' aml/ 2\ , 3tf4 T ' f< ) + L = ( 8-6 ■4c2 7-5 _ 7-5-3 *8c— • S-6-4-2 8-6-4 3) 16^ + c3dc s c4dc s 7-5-3 8-6-4-2 I6?c. + ^_.= PL V(yy—aa) \6 + —L; and f]f —3^ , ‘16 \f (yy — aa) tf lahf , 7-5a4?/3 7-5*3a6?/ - u “ 5 a4?/ 16 ) V(y2—rf) 4. Another series may be obtained by the expansion of !nt° *'oM1 + ^+8V2+T6!3b3+-)> + ' 8-6-4 8-6-4-2 ) f(f~ 2) + 7-5-3a3 S-6-4-2 V (2c—cc) whence — tly \ fi+i^ yy — ad L : whence by substitution we have 2r ^ 8-2 V 2r yy ’,a\ X yy- aa\2 \ 2r ) the fluxions _ 2r -|- aa T / 2c aa X ~ 4c 4- aa ** \2(4c -f- aa) •(|Vt/-aT+^-L) + ., 1 4c aa, 2. If we reduce belonging to the series (y1 — a2) zdy, (if — a2) ‘zdy, 1 (if—a2)2 dy ; and the fluents of these are HL (y + \/[y2 — a2]) = L ; ^y \/(f — a2) —| a2L ; 1 . . i 3ai V(yy—aa) int° a SeneS’ We have (i f (f ~ <*) + f«2) y V (f — «2) +.-qL> «’hich af- j aa\ — ~~yy) VOL. VII. 2 — 1 1 in ~ + 2 f 2 3 lid 4‘2 ’ y4 ‘8’2-3 ’y 7a; + ford a result somewhat resembling that which is deduced from the first method. 26 COHESION. Cohesion. 5. We may also express a? in a series of integral powers of r/ only, if we suppose it to begin at some point in which the curve is inclined to the horizon, where the height is p, calling it at other points p y; and making = r = a + % + c?/2 + ...; we have then a: = /3+ + IfJ/3 + — > and the iixevLj\p ^ y~) — y pay + tph? + ... + }2atf + J-3 bf + ^ c/ + ..., which Ay must be equal to rs (Prop. A.): but s = d/) 1 , which may be developed by means of the H general idea of the forms of the curve in different cir- Cohesion cumstances. The unit of this table is the quantity yV, W"Y'^ which Segner calls the modulus of capillary attraction, and which for water is *1072 inch. The table begins with the extreme ordinate, where the curve is vertical: we have then the least ordinate, a; the greatest ordinate, where the curve again becomes horizontal; and the absciss corresponding to the extreme ordinate and to the greatest ordinate. V(1 + rr) Taylorian theorem p (A -f- PI) M ^ d2(pA) H2 —t- , t taking A = a, and PI = by dA2 2 cy24-..., whence H2 = ffy2-^ 2iciy3 + (2i(i’q-c2)?/4 +... H3 — i3?/3 -f 362c?/4 + ...; consequently rs — rf + (^Pc d" + •••; an(l hence by comparing r t ^ the homologous terms, we find y -/(1 + aa) _ P b — pa — (1 + aa)\ y/( 1 + aa)’ da b, and b = ax + frr3 + car5 + . . . = rs = 3-5 t6 + 4-2 * 8*2’3 + Sb^cx5 + . • • and ^ = fix5 + equation —+ ^-^ + tV + • r 2’3r 4>'5r bx + cx3 + dx5 — A ^x3 — ^ • 3b2cx‘ ' + # tyx? , _ a b — c r ,; consequently 1 rz —- (1 + ««)!; and in a similar manner we may de¬ termine the subsequent co-efficients ; but the calculation is somewhat laborious, and has no particular advantages. 6. We may still more readily obtain a similar series for y in terms of the powers of x with constant co-efficients; dy calling ty and making t = fre + cx2 + dx5 + ... whence yzra + ^^ + ^cx4-!-^ dx6 + ..., and the area fydx rt Extreme Ordinate. lOOyV 90 80 70 60 50 45 40 35 30 25 20 15 10 9 8 7 6 5 4 3 2 1*9 P8 1-7 1-6 1*5 1-47 1-445 1-428 1-418 1-4142 1-4142 1-4142 1-4142 1-4142 Least Ordinate. 99-99 89-99 79-99 69-99 59-99 49-98 44J,98 39-97 34-97 29-96 24-96 19-95 14-93 9-90 8-89 7-87 6-85 5-83 4-79 3-74 2-64 1-41 1-27 1-11 •94 •75 •50 •40 •30 •20 •10 •01 •001 •0001 •00001 •000001 Greatest Ordinate. 100-01 90-01 80-01 70-01 60-02 50-02 45-02 40-02 35-03 30-03 25-04 20-05 15-07 10-10 9-11 8-12 7-14 6-16 5-19 4-24 3-32 2-45 2-37 2-29 2-21 2-13 2-06 2-04 2-02 2-01 2-003 2-000 2-0000 2-0000 2-0000 2-0000 Greatest Absciss. •01 •01 •01 •01 •02 •02 •02 •02 •03 •03 •04 •05 •07 •10 •11 •13 •14 •17 •21 •26 •37 •65 •71 •79 •91 1-10 1- 40 P64 P86 2- 24 2-92 5-22 7-52 9-82 12-12 14-43 Terminal Absciss. •000001 •000002 •000003 •000004 •000007 •00001 •00002 •00003 •00004 •00006 •0001 •0002 •0004 •001 •002 •003 •004 •007 •01 •02 •06 •22 •27 •33 •47 •65 •96 1-18 1- 44 1-82 2- 49 4-80 7-09 9-39 11-70 14-00 — rt V(1 + tt) . ). But t? IP a? : hence we have the — 6 + L ^ and d = _ c + | J2 c — f b\ It is the less necessary to enter into any further detail of these results, as we have a table calculated by Segner, with his son’s assistance, which is sufficient to afford us a It may be observed that the last six values of the least ordinate are in geometrical progression, while the absciss increases in arithmetical progression; the difference of the abscisses 2, 3, being the hyperbolical logarithm of 10, which is the common multiplier of the ordinates. Al¬ though the table appears to be generally accurate, yet we cannot always depend on the last figures. Thus the ulti¬ mate difference of the two last columns is made *43, while it ought to be *53 (Prop. B. Cor. 1). It is scarcely ne¬ cessary to remark, that if we look in the fourth column for half the distance between two parallel planes of glass, in a vertical position, the first and second columns will give us the height to which wrater will rise between them, where it touches the glass, and in the middle of the in¬ terval. Sect. IV.—Surfaces of Doable Curvature. When the liquid is contained in a tube, or when it forms itself spontaneously into a drop having an axis of revolu¬ tion, it becomes necessary to consider the effect of the Cohesion. COHESION. tension in a direction transverse to that of the principal section; since the curvature will cause it to exhibit an equal pressure, whatever the direction of the section to which it belongs may be; and the curvatures of the sec¬ tions perpendicular to each other will either co-operate with or counteract each other, according as the con¬ vexities of both are on the same side, or on the opposite sides, of the surface. But the simple consideration of the tension supporting the weight of the parts below, or the equivalent pressure in a contrary direction, will at once afford us the equations necessary for the solution of the problem, without any immediate reference to the cur¬ vature in question. D. The form of a surface of revolution may he determin¬ ed by means of an infinite series. The fluxion of the weight or mass of the parts con¬ tained within the cylindrical surface, of which x is the ra¬ dius or absciss, and y the ordinate, being always propor¬ tional to yx&x, and the fluent to fyx&x; and the extent of the circumference supporting it varying also as x, and the contractile force being diminished when reduced to the direction of gravitation, in the ratio of the radius unity to the sine of the elevation s, it wall always be pro¬ portional to xs; so that we have the general equation fyx&x = mxs. Now if we suppose y incomparably greater than x, and the surface extremely minute, the variation of y may be neglected, and we have in this case^^da; = tyx2-, and supposing also s = 1, and the curve vertical, iyae2 = mx, and %yx = m, x becoming also equal to the radius of curvature. But it is easy to perceive that the height y must be twice as great, for any value of x, as in the case of a simple curvature, since each portion of the circumference has here only to support a wedge, which is only half as heavy as a parallelepiped of the same height; so that \yx will be equal to yx in Proposition A, and rn — r. In order to obtain a series for finding y from the equa- , dy , tion fyxdiX = mxs, we may put the tangent < _ — — or + ac3 + rfx5 + ..., whence y = « + ^bx2 + + ^dx^ + ..., and^da? = ^ax* + ^ cx6 + —g e^8 + ; and the value of s = being expanded .11 into a series, as in Proposition C, n G, calling —, or —, g, we find s =■ ^fyxdx = fo: + cz3 + dx5 + cx7 + ... — Wx?—t-3b*cx? \ 3 6c2 + J x7 + ... + lx &5 ic5 + § * 5 &4e + ... -ft v *7 -••• 2 ?«* + 2^ ^ + Te ^ + frS qdxl + " e = f 2-4< 1 C=~qb + J-63 2‘42,6 1 2-42-62-8 1 2-4 q3b + 82 ojq I 105 „ 2'4-62-8 qW+ 2-4-G-8 9 652 ^ 2-42-62-82T0 fb + 15 1 2-4-G 2645 + 1260 g = 2-4-6-8-10 2-42-62-82-10M0 ^ + gb7 + 1 105 2-4-G-8 5197 27 Cohesion. i#3 2-4-62-82-102-12 , 59855 , 70522-5 9W 2-4-6-82-102-12 9 + 2-4-6-8-102-10 9 h = l = 2-4-6-8T0-12 1 a 26 consequently b — \ ga — —, and a — — —2rb; and by continuing the calculation, and reducing the values, we find 2-42-62- 122-14 qGb + 1303034 2-4-6-82-102-122-14 2-4-6-8-10 41800 2-4-62-82--122-14 qW 2.42.62.. 142.16 1 2-42-62--162-18 1 q7b + q% + flf + . 339412 2-4-62-82-142-l6 2779888 2-4-62-82--162-18 22941328 k = l = 2-42-62--182-20qJh ' 2-4-62.82"182-20 We may here observe, that the numerical co-efficients of the highest powers of b form the series + BZ>3 + CZ>5 -f . . .; and from this we may determine the central ele¬ vation or depression a = 2rb by the well-known method of the reversion of series, which give us the value b = -^s B _ /C 3B2\ - /D, sBC, 12B3\ A* ^ (a8 A7 / (a8 A9+A10 + But it is more convenient to assume an approximate value of b, a little less than and to find the corresponding value of s; then, since ds = Ad Z» + BZ>2d 6 + 5 C Z»4d 6+ ..., if we make Ab + 3BZ>3 + 5CZ>5+ .. . = 2, we shall have — : consequently the small increments of s and b will d6 6 1 J be to each other as 2 to b, and we obtain the correction of b from the error of the calculated value of s; and if the calculation be repeated with the corrected value of b, the second result will always be sufficiently near to the truth. In order to judge of the accuracy of this mode of calcu¬ lation, which Mr Laplace appears to have thought liable to some undefined objection, it will be necessary to enter into the details of its different elements, which will suffi¬ ciently show the degree of convergence of the series, and the greatest possible amount of error. Values of the Co-efficients of s for Tubes of different Dia¬ meters, r being -005, and s — -75. D = 2cc s= bx X + b3a? X + ZAc5 X + b7x7 X 1*0 47-176 7190 It appears, upon inspection of this table, that the co-ef¬ ficients of bx alone always determine |{J- of the value of the quantity required, and these are easily calculated with perfect accuracy, so that the error must always be far less than and in fact the actual uncertainty never exceeds of the whole, at least in the last four examples. The differences of Mr Laplace’s approximatory calculations from these results are incomparably greater, so that we cannot hesitate to consider these differences as errors. Indeed, when we recollect that in the method employed by Mr Bouvard, under Mr Laplace’s directions, the radius of curvature of each of the small portions into which the curve has been cut up, has been determined from the or¬ dinate at the beginning of the portion, it is obvious that the curvature thus found must be less than the truth, and that in order to obtain any required curvature of the whole surface, the depression must be increased in the same proportion ; and there is no ready way of appreciat¬ ing the amount of this error. Dr Young had before at¬ tempted to avoid it, in making an estimate of the same nature, by calculating for the middle of each portion ; but, from some accident, the numbers of his table, published in 1807, are generally a little too small, although the me¬ thod which he then employed is nearly the same as that which Mr Laplace afterwards adopted, except that for the lowest portion of the curve Mr Laplace had recourse to an infinite series, applicable only to that part. The elements deduced in Nicholson’s Journal for 1809, from Mr Gay Lussac’s experiments, which are r — -0051 and s — *7353, agree better with the numbers found in Mr Laplace’s table, than those from which it was construct¬ ed, which were r — -005038 and s rr -729 ; the depres¬ sions being always a little larger than the true results from the elements assumed. The value of the ordinate y depends also principally on the first variable member of the series, although the sub¬ sequent co-efficients are not so inconsiderable as in the de¬ termination of the sine. Thus, taking x — -2, and b —1-503, we have y — a -813 ba? + -99 ZAr4 + 2*97 ZAc6 + . . . = -01503 + -0489 + -0054 + -0015 + [-0006] = -0714, which is the marginal depression, leaving -0564 for the height of the convex portion y — a. We may determine the effect of any small variations in this height, in the same manner as that of the sine of the inclination ; sup¬ posing them to depend on a change of the angle of con¬ tact only, the quantity r remaining unaltered, it is obvious that q and x must retain their value, while y and b only _ /,d(y —a) dZ> vary, and making Y = AZ> + 3 BZ*3 + . . . = Z> we have Y : 6 = d (t/ — a) : dZ». In the present instance, we find Y = -0489 + 3 X -0054 + 5 X -0015 + . .. = -079; and supposing, as in the example suggested by Mr Laplace, the variation of the height y — a to be •00394, which is 2\yth of Y, that of b will be g^th of Z>, or •075, and the variation of the central depression a, -00075, which is somewhat less than one fifth of the alteration in C O H C O H 29 Cohesion the height of the convex portion ; but in smaller tubes it II is obvious that the variations of the depression a might Cohorn, exceed that of the height of the convex portion. Nothing can be easier or more direct than this part of the calculation ; and it is remarkable that Mr Laplace should have considered the awkward contrivance of building up a curve, like the arch of a bridge, with fourteen blocks on each side, as possessing any thing like an “ advantage” over the series in the determination of this variation. If we wish to find the effect of a small variation of the diameter of a tube, from D to D D', on the depression a of the mercury comained in it, we may use for the in- o! CD^ terpolation the formula — = 10 — 1, C being about 2-9 for tubes between 1 inch and j-th of an inch in dia¬ meter, and being elsewhere easily deduced from the de¬ pressions already known. For variations of the cohesive power, and of its measure r, we may suppose the whole of the numbers of the table to be altered in the proportion of the supposed alteration of ^r, and the change pro- Cohorn. duced by restoring the diameter to its former dimensions Cohesion may then be calculated like any other interpolation. There is also a more comprehensive formula, which seems to ex¬ press the depression in tubes of all sizes with great accu¬ racy; it is this, a = — : and it might D + 48 D3 492 26 D even be possible to shorten the original calculation by a comparison of the series with the expansion of this empi¬ rical formula, if it were of any farther importance to faci¬ litate the mode of computation. But for all practical pur¬ poses, it will be sufficient to collect the results already obtained into a comparative table, arranged in chronolo¬ gical order ; and it is remarkable, that they are all com¬ prehended, without any material exception, between the two values assigned to each as near the truth in Dr Young’s first table, the mean of those values never differ¬ ing a thousandth of an inch from the result of the more correct calculation ; while the error of Lord Charles Ca¬ vendish’s experiments, notwithstanding their general accu¬ racy, sometimes amounts to nearly one hundredth, (l.l.) Table of the Depression of Mercury in Glass Tubes. Diame -ter. Inches. 1-00 •90 •80 ;70 •60 •50 •45 •40 •35 •30 •25 •20 •15 •10 •05 CENTRAL DEPRESSION. Observed by Ld Ca¬ vendish. •005 •007 •015 •025 •036 •050 •067 •092 •140 Dr Young, Phil. Trans. 1805. Diagr. •005 •007 •012 •017 •027 •038 •056 •085 •140 •008 •017 •024 •033 •044 •064 •088 •140 Laplace, 1806. DrYoung, 1807. 0038 0136 •0045 •0074 •0100 •0139 •0196 •0280 •0404 •0589 •0880 •1424 •2964 Nicholson’s Journal, 1809. r = -005 s — -750 00031 00060 00115 00220 00411 00799 01100 01516 02093 02902 04064 05800 08620 •14027 •29497 ,•=•00.51 s = -7355 00032 00062 00118 00224 00416 00805 01106 01522 02098 02906 04067 05802 08621 14027 •29497 Laplace, 1810. 00128 00244 00462 00868 01174 01591 02165 02985 04117 •05798 •08538 •13940 Correct Calculation. r = '005 * ■= '750 0003073 001147 004160 01503 •05776 •14004, ,■ = •005038 • = -729 000307 001144 04128 01486 •05696 ■13726 Empirical Formula. •00031 00059 •00112 •00220 00421 •00799 •01099 01495 02082 •02881 ■04025 ■05771 •08568 •14002 •29502 Marginal Depression. Nich. 1839. r = -005 * = -750 •0637 •0676 •0690 •0714 •0745 •0787 •0850 •0966 •1171 •1619 •3060 Differ¬ ence. •0596 •0596 •0580 •0562 •0536 •0497 •0444 •0386 •0309 •0216 •0110 Diame¬ ter. 1-00 •90 •80 •70 •60 •50 •45 •40 •35 •30 •25 •20 •15 •10 •05 COHORN, Menno, Baron de, the Yauban of Hol¬ land, and the contemporary as well as rival of the cele¬ brated French engineer, was born at Leeuwarde, in Frise- land, in 1641. His father, an officer of distinguished me¬ rit, early inspired him with a taste for military science ; and having studied mathematics, in which he made great pro¬ ficiency, under his uncle Fullenius, professor at Franeker, he entered the service with the rank of captain, at the age of only sixteen. In 1673, he attracted notice at the siege of Maestricht, and afterwards distinguished himself so much in the bloody battles of Senef, Cassel, St Denis, and Fleurus, that he was promoted to the rank of colonel. In the campaign of 1675, he performed an important service at the siege of Grave, by successfully employing the means which he had invented for crossing the fosses of fortified places, and thus carrying a bastion without a counterscarp, the access to which was defended only by the river Meuse; a service for which he received, on the spot, the warmest commendations of Vauban. At a subse¬ quent period Cohorn ably applied his theory of fortifica¬ tion to the fortress of Coverden, the works of which he directed; and when war broke out in 1689 between Hol¬ land and France, he distinguished himself by new exploits. At the siege of Namur he was opposed to Vauban, and at the head of his own regiment defended Fort William, which he had himself constructed, in the most gallant and determined manner; but he was at last compelled to yield to superior force, and surrendered the work to his great rival. He had his revenge, however, in 1695, when he participated in the capture of the same place, which had been fortified by himself, but which Boufflers was unable to hold out against King William. The alternate taking and retaking of Namur, under the direction respectively of Vauban and Cohorn, is considered as illustrative of the different styles or systems of these celebrated engineers; Vauban employing no more artillery than was absolutely necessary, using his influence to moderate the ardour of the troops, whom he never permitted to advance except under the cover of works, and placing his glory in the most rigid economy of life; whilst Cohorn, on the other hand, accumulating artillery of all kinds, and sacrificing every thing to the desire of abridging the siege, by striking the besieged with surprise and terror, was equally prodi¬ gal of means and of men. “ Vauban avait cerne, reserre, coupe, morcele les assieges; Cohorn ne s’etait occupe que de les accabler. C’etait la force substituee a I’industrie, 30 C O I C O I Cohort ou plutot I’industrle employee a multiplier les moyens de II destruction.” In 1702, Cdhorn, now appointed lieutenant- Coimbe- general, published in Dutch his New Method of Fortifying toor. places, Leewarde, folio ; a classical work, which, several years afterwards, was translated into French under the title of Nouvelle Fortification, tant pour un terrain has et humide que sec et eleve. Hague, 1706, 1711, 1713, 8vo. In 1703 Cohorn conducted several sieges according to the system above described, forced Bonn to capitulate in the space of three days, and performed other important services. But his active career was now approaching to a close, for, on the 17th March 1704, he died of apoplexy, at the Hague, whither he had gone, at the invitation of Marl¬ borough, to concert measures with that great commander for opening the ensuing campaign. Bergen-op-Zoom, which was fortified by Cohorn, is generally and justly considered as his masterpiece, and was for many years believed to be impregnable; but, to the surprise of all Europe, it was taken by the French under Lowendahl in 1647, though not without suspicion of treachery on the part of the garrison, which certainly made a very feeble defence; and, in 1814, an attempt to carry it by a coup- de-main, planned by the gallant Lord Lyndoch, had near¬ ly succeeded, and, in truth, misgave only by an extraordi¬ nary accumulation of adverse accidents, to which indeed night attacks are all more or less exposed. COHORT, in Roman Antiquity, the name of a part, di¬ vision, or regiment, of the Roman legion, comprehending about 600 men. There were ten cohorts in a legion, the first of which exceeded the others both in dignity and in number of men. When the army was ranged in order of battle, the first cohort occupied the right of the first line, and the rest followed in their natural order; so that the third stood in the centre of the first line of the legion, and the fifth on the left, the second between the first and third, and the fourth between the third and fifth; while the five remaining cohorts formed a second line in their natural order. COIF, the badge of a sergeant of law, who is called ser¬ geant of the coif, from the lawn coif worn under the cap when the grade of sergeant is conferred. COILERE PETTAH, a town of Hindustan in the pro¬ vince of Tinnevelly, thirty-three miles south by west from Madura. Long. 78. 3. E. Lat. 9. 25. N. COILLE, a town of Hindustan, in the province of Ba- har and district of Tyrhoot, sixty-seven miles north by east from Patna. Long. 85. 41. E. Lat 26. 27. N. COIMBETOOR, a small province in the south of Hin¬ dustan, situated between the 10th and 12th degrees of north latitude. It is bounded on the south by Dindigul, on the east by Salem and Kistnagherry, on the north by Mysore, and on the west by the province of Malabar. This dis¬ trict is divided into North and South Coimbetoor. The former is a highly cultivated and productive country, where wells and reservoirs abound, and are rendered subservient to the purposes of agriculture. Rice is the grain chiefly cultivated; and the country also produces sugar, cotton, tobacco, &c. To the east, the Ghauts rise to the height of 1500 or 2000 feet above the level of the upper country, which is better cultivated than in Mysore. The soil in many places is very good; and the remains of many hedges, and traces of cultivation, show not only that the whole country was once cultivated, but that it was culti¬ vated in a manner much superior to that which is now practised; but it has been greatly injured by the devasta¬ tions of war. When it was invaded by General Meadows, cultivation came to a stand for two years ; and all the grain in the country was indiscriminately swept away by the de¬ fending and invading armies. The inhabitants were driven to the hills, where they subsisted on grain produced in places inaccessible to the military; but numbers died from Coimbe. misery and hunger, and great part of the lower country toor. was in a state of desolation. Near to the town of Coimbetoor the soil is in general good, and tolerably clear of rocks and stones. The waste fields do not appear to amount to more than a half of those that are arable. There are few hedges, and still fewer trees; but there is a good deal of rice ground watered by reser¬ voirs. All kinds of soil are also cultivated for gardens ; and the value of the ground and the rent which it pays are regulated by the depth of water which stands upon it. The gardens produce betel and cocoa nut palms, also tobacco; but throughout the whole province of Coimbetoor the wet cultivation is little more than three per cent, of the total cultivation. In South Coimbetoor the rice grounds along the banks of the Amaravati are extensive, and fully culti¬ vated. Some earths are found in this province impreg¬ nated with muriatic salts, and others with nitrates. Much of the well water has also a saline taste. The rains are usually considered as more regular and greater in quantity above the Ghauts than below; Dr Buchanan, however, thinks that this is doubtful. The westerly winds bring the heaviest rains, but the country below the Ghauts enjoys a considerable portion of the rain from the other monsoon, which prevents it from ever being parched up by drought. From April till about the middle of June the winds are moderate, with a short interval of ten or fifteen days, when violent squalls come from the west¬ ward, with thunder and lightning, heavy showers, and hail. In the succeeding two months, for about ten days there are heavy showers, with fogs on the hills, and in the in¬ terval the heat is moderate, with cloudy weather. From about the middle of August till December there are oc¬ casional heavy rains, and more temperate weather in the summer than is usual in Hindustan; and in winter there are sometimes showers, with heavy dewrs, a very cold air, and south-easterly winds. The spring is generally dry, with light breezes from the south, and moderate dews. Fevers and fluxes are epidemic among the inhabitants from about the middle of October. Many sheep are bred in the country, of which there are two kinds; the one short bodied, with a short small tail; the other of a thinner make, with long ears and scanty wool. Though small, they are of good quality, fattening readily, and making most delicious meat. The pasture, though it looks bare, seems to be more nutritious than that on the banks of the Ganges. Here is also a breed of goats; but they are very inferior to those which are reared above the Ghauts. A good sheep costs only from 2s. lid. to 2s. 6d. The wild animals are nearly the same as in other parts of India. In the hills there are many black bears, which are harmless, living chiefly on white ants, wild fruit, and the palmyra tree. They are dan¬ gerous when disturbed, and in this case often kill the in¬ truder, though they never devour him. They are very strong, and not afraid to encounter the tiger. The inhabitants of Coimbetoor have made little pro¬ gress in the arts of civil life, and are as far inferior to the people of Mysore in intelligence and in mechanical know¬ ledge as these are to the natives of Madras and Calcutta. The only manufacture is that of weaving. The principal towns are Coimbetoor Errood, and Caroor. At a place called Perura is a celebrated Hindu temple, which is said to be 3000 years old. It is highly orna¬ mented with numerous figures, some of which are very indecent. This temple, which is called Mail Chittumbra, was excepted by Tippoo, with two other places, when he issued an order for the destruction of the Brahmin tem¬ ples. Coimbetoor was first annexed to Mysore about the year 1746. It was taken possession of by the British in C O I C O I 31 Coimbe- 1783, but was restored to Tippoo at the conclusion of the toor war. It was again conquered by the British in 1790, and II was taken final possession of by them in 1799. Since this Cmn. period it has been governed by a European judge and col- lector under the presidency of Madras. Buchanan’s Journey through Mysore, Canard, and Ma¬ labar ; Fifth Report of the Select Committee on Indian Af¬ fairs ; Rennell’s Memoir of a Map of Hindustan, &c. Coimbetoor, a town of Hindustan, and capital of the province of the same name. This city suffered deeply, along with the whole province, in the wars which took place between the British and the Mysore sovereigns. Since it fell into the hands of the English, the town has recover¬ ed considerably, and contains 2000 houses, which is con¬ siderably more than half the number it contained under Hyder’s government. It has a mosque, built by Tippoo, who sometimes made Coimbetoor the place of his resi¬ dence. It is defended by a citadel or small fort. It was conquered by the Mysore family about the year 1645, and the fort was then enlarged. One of Hyder’s deputies built a house which is called by the natives a palace, but is no¬ thing better than an inconvenient pile of mud, and now serves as a barrack for cavalry. The hereditary chief of Coimbetoor is of the Vaylalar tribe. It was twice taken by the British; first in 1783, and secondly in 1790. It was afterwards besieged by the troops of the sultan, who, in an attempt to storm it, were repulsed by a weak garrison ; but it subsequently surrendered to Tippoo, who broke the ca¬ pitulation and imprisoned the garrison. It came perma¬ nently under the jurisdiction of the British in 1799. Long. 77. 6. E. Lat. 10. 5. N. COIMBRA, a city of Portugal, in the province of Bey- ra, containing 1500 inhabitants. The river Mondego passes through it, and has a well-built bridge across it. After traversing the province, it enters the sea at the port of Buarcos. Coimbra is the see of a bishop, but is principally celebrated for the university w'hich is established there. This institution, the only one of the kind in the kingdom, is richly endowed, having an annual rental of two millions of reals. Besides professors of divinity and other studies connected with theology, it has teachers of law, mathe¬ matics, and the classics. It has a botanic garden, a chemical laboratory, cabinets of physics and natural history, an as¬ tronomical observatory, a printing office, and a copious li¬ brary, open for the improvement of the students. What¬ ever may be the mode of communicating knowledge, few institutions in Europe excel this in the liberal application of wealth to that purpose. It is the capital of the pro¬ vince in which it stands, and is in longitude 7. 53. 37. W. and latitude 40. 12. 30. N. COIN, a piece of metal converted into money by the impression thereon of certain marks or figures. Coin dif¬ fers from Money as the species from the genus. Ancient Coins are those chiefly which were current among the Jews, Greeks, and Romans. Their values and proportions are as follow : JEWISH. Gerah 10 Becah. 20 1200 60000 120 6000 Shekel. 50 jManeh. Mina Hebraica j 3000|60|Talent Solidus aureus, or sextula, worth. Siculus aureus, worth A talent of gold, worth £ s. d. 0 0 Wo 0 ° m 0 0 2| 5 14 Of ..342 3 9 0 12 0i 1 16 6 ,5475 0 0 GRECIAN. Lepton 0 Chalcus ....0 Dichalcus 0 Hemiobolum 0 14 28 56 112 224 336 662 1324 32 48 96 112 1660 384 4 8 16 _24 ~48 96 120 Obolus 0 Diobolum 0 Teti'obolum 0 Drachma 0 Didrachmon. Tetrardstat....2 l^|Pentrad....3 Coin. d. qrs. 0 0|i- 0 W 0 W u 5 Of Of these, the drachma, didrachma, &c. were of silver; the rest for the most part of brass. The other parts, as tri¬ drachm, tribolus, &c. were sometimes coined. The drach¬ ma is here, according to the generality of authors, suppos¬ ed to be equal to the denarius, though there is reason to believe that the drachma was somewhat heavier. See Drachma and Denarius. £ s. d. The Grecian gold coin was the stater aureus, weighing two Attic drachms, or half of the stater argenteus, and exchanging usually for twenty-five Attic drachms of silver in our money 0 16 If According to our proportion of gold to silver 1 0 9 There were likewise the stater Cyzicenus, ex¬ changing for twenty-eight Attic drachms, or 0 18 1 Stater Philippicus and stater Alexandrinus, of the same value. Stater Daricus, according to Josephus, worth fifty Attic drachms, or 1 12 3£ Stater Croesius of the same value. roman. Semilibella 0 0 Libellal Teruncius. J2 4 Tu 20 40 s. d. .0 0 / ,0 0 Sestertius 0 1 Quinarius 1 Victoriatus f .0 3 2| Denarius 0 7 qrs. 3 Of these, the denarius, victoriatus, sestertius, and some¬ times the as, were of silver, and the rest of brass. See As, &c. There were sometimes also coined of brass the triens, sextans, uncia, sextula, and dupondius. £ s. d. The Roman gold coin was the aureus, which weighed generally double the denarius; the value of which, according to the first propor¬ tion of coinage mentioned by Pliny, was 1 4 3f According to the proportion that obtains now amongst us, worth 1 0 9 According to the decuple proportion, mentioned by Livy and Julius Pollux, worth 0 12 11 According to the proportion mentioned by Ta¬ citus, and which afterwards obtained, whereby the aureus exchanged for twenty-five denarii, its value 0 16 I f Modern Coins will be treated of under the article Mo¬ ney. 32 COINAGE. Coinage. Under this head it will be proper to give a brief ac- count of the constitution of the royal mint, as well as of the different processes which come under the general term Coinage ; for all these processes are conducted under va¬ rious checks emanating from the constitution which the legislature has thought proper to give to this royal esta¬ blishment. The royal mint attained its constitution of superior of¬ ficers in the eighteenth year of the reign of Edward II., and, with very few alterations, continued as then establish¬ ed till the year 1815. Of the alterations in this latter year we shall have occasion to speak hereafter. Ancient Edward appointed a master, warden, and comptroller, establish- king’s and master’s assay-master, and king’s clerk, besides ment of several inferior officers, whose duties will be mentioned the mint. hereafter. Previous to this period we have very little in¬ formation as to the system of coinage pursued at the va¬ rious mints which the kings of England had throughout their dominions. The Reverend Roger Rudding, in his valuable and laborious Annals of the Coinage of Britain and its Dependencies, gives it as his opinion that the mo- neyers were in very early ages the only officers employed in the fabrication of the money. On the early Anglo- Saxon coins are found, besides the names of the monarchs, those of other persons, who are with great probability conjectured to have been the moneyers, because on the later Anglo-Saxon money the names of those officers fre¬ quently occur, with the addition of their title of office. From the circumstance of their names being inscribed on the coins, it is reasonable to conclude that they were re¬ sponsible for the integrity of the money, and that likewise they were the principal officers of the mint, because infe¬ rior officers would have given security to their superiors, whose names would have appeared on the money, as a pledge to the sovereign that it was duly executed. The silence also of the Anglo-Saxon laws, and of Doomsday Book, as to other officers of the mint, whilst they so fre¬ quently mention the moneyers, greatly corroborates the opinion that they were the only persons employed in the Anglo-Saxon and early Anglo-Norman mints, except, per¬ haps, occasional labourers; and it is observable, that when in the reign of Henry I. the money was so much corrupt¬ ed as to call for a sentence of the most exemplary seve¬ rity on the offenders, the punishment is said to have been inflicted upon moneyers only, without the least notice of any other officer. This was also the case upon a similar occasion in the reign of Henry II. Mr Rudding is unable to determine the exact period when it became necessary to place some permanent su¬ perintending authority in the mint to prevent the bad practices of the moneyers; but it is probable, he says, that such an officer was appointed between the twenty- sixth of Henry II., when the moneyers alone were punish¬ ed for the adulteration of the money, and the third of Ri¬ chard I., when Henry de Cornhill accounted for the pro¬ fits of the cambium of all England, except Winchester. It is not improbable that this first warden of the mint was appointed for the purpose of collecting the revenue arising from the seignorage charged upon coinage of bullion. The object of the warden’s appointment might also ex¬ tend to the inspection of the fabrication of the money, with a view to prevent the master and his moneyers, or the moneyers alone, from taking any undue advantage of the king or the public by the adulteration of the coin. The most important officer, however, upon the establish- Coinage, ment of the mint, with a view to the maintenance of the standard purity of the coin, is the king’s assay-master; and there are persons mentioned as holding this office in the sixth of Henry III. As this officer had the assaying of all the bullion after melting for coinage, and after it was coined, it is obvious that the very existence of the credit and honour of the mint and sovereign depended upon the duties he had to perform; and such an officer probably existed from the earliest period of the fabrica¬ tion of money, though our records do not accurately de¬ fine the precise date of his appointment. The next officer of importance in the mint is the comp¬ troller ; and the first whom Mr Rudding’s researches have discovered held the office between the 5th and 15th of Edward II. His duty, distinct from that of the other officers of the mint, is to make out annually a roll, called usually the comptrol or comptrolment roll, containing an account of all the gold and silver coined, and to deliver it on oath before one of the barons of the exchequer. It is always written upon parchment, and forms a permanent record of the coinages of the mint. The king’s clerk and clerk of the papers is the next check-officer upon the establishment; as king’s clerk, he acts as a check upon the whole process of the coinage, the same as the warden and comptroller; as clerk of the pa¬ pers, he keeps a book of record of the transactions of the mint. Of the creation of this office we have not been able to find any record. These are the principal check-officers of the mint, and no doubt were appointed as mutual checks upon each other’s integrity, and to watch over the interests of the king and other importers of bullion into the mint. There is another officer upon the establishment, whose duties are important, but of whose origin and appointment we have not been able to find any notice. His title is the master’s assay-master, and his duty consists in assaying every ingot of gold and silver brought to the mint for coinage; and upon his integrity the master and worker relies that no bullion shall be received into the office for coinage but what is conformable to the standard of the realm. Mr Rudding remarks (vol. iii. p. 1), that at a very early period of the history of Britain, when the communication between its different parts was extremely imperfect, it be¬ came necessary to establish mints and exchanges, not only in the chief city, but also in various other places, for the purpose of supplying the neighbouring districts with money to carry on their commerce. To this necessity alone such establishments are to be ascribed; and accordingly we find, that by degrees, as the communication opened, the subordinate mints and exchanges sunk into disuse, and one fixed in the metropolis was found to be amply suffi¬ cient for the supply of the whole kingdom. Athelstan appears to have been the first monarch who enacted any regulations for the government of the mints. In his laws, which were promulgated about the year 928, he provided that one sort of coin only should be current throughout the kingdom, and granted to various towns by name a number of moneyers proportionate to their size and consequence, and to all boroughs of inferior rank one moneyer each. These mints were under the control of that within the Tower of London, from which, as paramount, the dies were issued, and for which the moneyers paid a regular COINAGE. 33 Coinage, fee upon every alteration of the coins. They also paid an —annual rent, which, in the city of Lincoln, amounted to L.75 (according to the statement of Doomsday Book), a very considerable sum at that time. The rents of the other mints were, however, much inferior to this. To increase the facility of distributing the coins made at these mints, exchanges were appointed in various places, from whence new coins were issued, and in which bullion was purchased for the supply of the mint; and it appears that our monarchs claimed the exclusive privilege of pur¬ chasing bullion, and appointed proper officers, to whom they delegated that branch of their prerogative. It appears to have been the duty of these officers not only to exchange the current coins of one metal for those of another, but also to receive wrought plate and bullion, and foreign coins, according to their fineness respective¬ ly; and as the exportation of the coins of the realm v/as prohibited, they furnished persons going out of the king¬ dom with foreign coins in exchange for English, and also supplied merchants and strangers coming into the king¬ dom with English coins in exchange for foreign. These exchanges of coin were regulated by a table, which was hung up in the exchanger’s office. This office has ceased to exist since the reign of Charles I. Henry earl 6f Holland v/as the last keeper of the ex¬ changes between England and Ireland. Besides the officers mentioned, there was another of great importance in early times, who bore the title of cu- neator. Mr Rudding mentions this officer as being here¬ ditary, and, as far as he had discovered, the only one in the mint that was so. The engravers of the dies seem to have been appointed by him, and to have been under his immediate cognizance. By him the}r were presented to the barons of exchequer, before whom they took the usual oath of office; and it was probably his duty to see that all the dies (as well those which were used in the paramount mint in the Tower of London, as those which were issued from thence to the subordinate mints) were of the same type. This was no doubt a circumstance of great moment, when so many mints were allowed to be worked in various parts of the kingdom. When these mints were abolished, and the mint in the Tower became the only source from whence coins were derived, the office sunk into disuse. B}' right of office this officer claimed the old and broken dies as his fee. An officer of a simi¬ lar kind exists in the mint at this day, who is called clerk ot the irons, whose duty it is to superintend the manufac¬ ture of the dies for coinage; but he has no power to ap¬ point the engravers of the dies. In the early history of the mint, as at present, the mas¬ ter of the mint fabricated the coins at certain charges per pound weight. He had his regular establishment of melt- ers and moneyers, to whom he paid certain rates for melt¬ ing and making the monies, reserving for himself a certain fee lor his trouble and responsibility. For in all his en¬ gagements with the crown the master had to bear all waste and charges arising in and out of the coinage of gold and silver. Mr Rudding mentions, that in the tenth of Edward III. the workmen of the mint of London peti¬ tioned the king for an increase of their allowance for coin¬ age, alleging that they were at that time at greater ex¬ pense, and bestowed more labour in forming the monies, than had been usual in former times, so that they could not maintain and continue such expense and labour un¬ less their allowance was increased. The king being willing to grant their petition if just, commanded John de Wyndesore, warden of the mints of London and Canterbury, together with Lapone Roger, and others experienced in such matters, to inquire whe¬ ther the allowance was sufficient, and if not, to deter- VOL. VII. mine what addition should be made; and they were or- Coinage, dered to make their report in chancery, under their seals, without delay. A warrant was in consequence issued, and Lapone and Roger Rikeman, exchangers of London, and Stephen Boke, having been examined on oath by the warden, the follow¬ ing report was made:—That having inquired diligently respecting the necessary expenses of the master of the mint and the workmen, namely, of alloy, clay, and salt, and other things used in the making of new money, and also of the expenses occasioned by the waste arising from the whitening of the halfpennies and farthings, on account of the increase of the alloy, and from the hardening of the metal of the said coins in working and coining, they were of opinion that the work could not be carried on without an increase of 3d. for each pound at the least; and with that the workmen ought reasonably to be contented. And whereas of old they received for all costs, colour, &c. for a pound of halfpennies 7^d., and for a pound of far¬ things 9jLd., that they should receive for the former lO^d., and for the latter 12|d., so that the master should have of increase 2d., and the workmen Id. It was the duty of the warden to take an account of all the bullion of gold and silver intrusted to the master and worker of the mint to be coined ; and in this duty he was aided by the comptroller and king’s clerk, who, in their respective capacities, kept books of entries of the receipt of bullion, and its delivery in coin to those who brought the bullion for that purpose. Besides these duties, the check-officers just named had the superintendence of the different processes through which the bullion had to pass, from the assay of the ingot to the delivery of the coin to the importers ; and it is more than probable, that, in the in¬ fancy of the mint, when the demand for coin was very li¬ mited, the whole processes of the coinage were conducted in one apartment, and that the master, warden, comptroller, and other principal officers of the mint, accompanied the sovereign from place to place in his dominions, and actu¬ ally superintended the fabrication of the coin at the mints of the towns where he sojourned. The progressive civi¬ lization of the country, the increasing demand for money, and the more permanent residence of the monarchs in London, give the mint of the Tower a predominance over all others; and these circumstances very probably called for the appointment of other check-officers, who are now upon the mint establishment, such as the surveyor of the meltings, whose duties are to superintend the melting of the pots of gold and silver, and to weigh the proportion of fine gold or alloy which may be necessary to produce the standard of the money; to take samples of all pots melted, and carry them to the king’s assay-master, for him to as¬ certain if the standard has been adhered to by the melter; and to lock up the said pots, of which samples have been taken, in the melter’s stronghold, of which he has one key and the melter another, and there to retain them un¬ til the king’s assay-master has declared that they are of the proper standard. In the infancy of the mint the du¬ ties of this officer were probably performed in the presence of the warden, comptroller, and king’s clerk; but the in¬ crease of duties in the mint-office, in the receipt of bul¬ lion and delivering of coin, probably rendered it necessary to relieve the principal officers from these duties, as well as from those of another officer called the surveyor of the money-presses, whose duties consist in seeing that good dies are used, and clean money made in the coining room. When these and other officers were in full power, ope¬ rating as checks upon the coinage, and consequently upon the master and worker, they received their salary and fees from the warden, as chief of the check branch of the establishment. 34 COINAGE. Coinage. The expenditure for the repairs of buildings, officers’ houses, &c. was also paid by the warden of the mint; and his authority for doing so was by the mint indenture, in which these duties are detailed. “ And our said so¬ vereign lord the king doth will and command that the warden or wardens of the mint, for the time being, shall content and pay to the officers and ministers aforesaid, such stipends and wages, and such diet, as in schedule limited and appointed, in manner and form, and during such term as in the same expressed; and that thereof he and they shall have due allowance and defalcation upon his or their accounts. And that the said warden or war¬ dens shall make his or their accounts yearly, as well of all and every of his or their receipts, as of his or their payments, and other charges, before the auditors of the mint for the time being, unless it shall please his majesty otherwise to appoint the same ; in which account the same auditors, or others to be appointed by his said majesty to take the said accounts, shall make unto the said warden or wardens full allowance, defalcation, and discharge, as well for all such sum and sums of money as he or they shall duly prove to have been paid or disbursed for of¬ ficers’ fees and wages, and diet for the said officers, as for any other necessary charges to be employed in and about the making of the said monies, or the repairing of the said offices and houses necessarily to be employed in the said service, under the avouchment of the said master and comptroller and assay-master, or any two of them, where¬ of the said master is to be one; and the said accounts so to be made by the said auditors, or by any other of his majesty’s special appointment for the same, being stated, and his debts determined, and his said accounts fully an¬ swered to his majesty, the said warden or wardens, upon his or their suit to the lord chancellor, or lord keeper of the great seal, or commissioners of the great seal, shall have letters patent of his said majesty under the great seal, to be made on his or their acquittance, without fee therefor paying; for the making of which said letters pa¬ tent these presents shall be a sufficient warrant and dis¬ charge to the said lord chancellor, or lord keeper, or lords commissioners for the custody of the great seal, for the time being, without any further or special warrant to be sued out for the same.” Notwithstanding the number of the checks upon the coin¬ age of our money, its history gives us the most undenia¬ ble proofs of their inefficiency, when the arbitrary will of the sovereign was allowed to set all law and justice aside. However much we may admire the precautions used by our ancestors in the formation of the constitution of the mint, we have still the painful recollection, though its forms and regulations have existed since the reign of Ed¬ ward III., that they could not prevent a Henry VIII. from disgracing his reign by perhaps the most wanton debasement of the currency that was ever, in a similar period of time, practised in any country in the world. The same ignorance and injustice disgraced the beginning of the reign of his son Edward VI.; but the subsequent acts, even of his short reign, were a good apology for the impolicy of his measures, and the severest censure upon the injustice of his father’s acts regarding the currency. The short reign of Edward VI. prevented that thorough reformation in the currency which the wisdom of his mea¬ sures began, and which was perfected in the long and glo¬ rious reign of his successor Elizabeth. Expenses In the early history of our coinage, its expenses were of the coin-paid by a duty or seignorage upon the money coined; and age in early besides these expenses, a certain duty was retained for times. the sovereign, and formed one of the sources of his reve- Coinage, nue. The amount of this duty was regulated entirely by the will of the sovereign, and without any regard to the principle by which it was assessed; it varied in different reigns, and was probably in a great measure regulated by the necessities of the sovereign for the time being. The mere charge of coinage, as Mr Rudding justly remarks, is probably as ancient as the invention of coined money; be¬ cause it would soon be discovered that the sovereign, after having turned his bullion into coins, for the benefit of his subjects, was no richer than before. It is probable, how¬ ever, that the deduction did not remain long at the simple expense of coinage, but was soon made a profitable and easily collected source of revenue. In fact, the preroga¬ tive of coinage being exclusively the sovereign’s, made it a certain source of revenue. In the earliest mint account which Mr Rudding has met with, namely, one of the Oth of Henry III., the profit upon the coinage was 6d. in the pound. This appears, says Mr Rudding, from the entries under that year of bullion coined in the mint at Canter¬ bury, when the profit upon L.3898.4d. is stated to have been L.97. 9s., which is exactly 6d. in the pound. Of that sum the king had L.60. 18s. 3^d., and the archbishop L.36. 10s. lO^d.1; and the whole sum of L.97. 9s. is stated to be the amount of exitus lucri, that is, we presume, the clear profit, after all the expenses were deducted. And this agrees with the seignorage which was taken in the 28th year of Edward I., amounting to Is. 27]-d. upon every pound, out of which the master had 5^d. for all expenses, and there remained 9d. clear profit to the king. But as this latter date is about seventy-eight years subsequent to the former, it is not improbable that the seignorage had been raised in that time in the proportion of nine to six. A seignorage continued to be charged upon the coinage Itegula- ! of both gold and silver until the reign of Charles II., who, tions intro after his restoration, took the expenses of the coinage ofcluce(l V the money of the Commonwealth upon himself. Charles III In September 1661, in the 13th year of his reign, a pro¬ clamation was issued, declaring that the gold and silver coined during the period of the Commonwealth should not be current after the last day of November in the same year. At the same time it declared, “ that such of our subjects in whose hands these moneys shall be found after the last day of November next ensuing, may not suffer too great damage or prejudice thereby, we are pleased further to declare, that all and every person and persons who shall bring any gold or silver coyn of the stamps and in¬ scriptions aforesaid into our mint in the Tower of London, shall there receive the like quantity of lawful and current moneys, weight for weight, allowing only for the coinage.” On the 7th day of December in the same year, another proclamation was issued, declaring the money of the Com¬ monwealth current only in payment of taxes, &c. to his majesty, and to continue so till the 1st day of May next ensuing. The object of this proclamation was to bring as much of this money into his majesty’s exchequer as pos¬ sible for the purpose of recoining it. It is in this procla¬ mation that the king takes the expense of coinage upon himself: “ We being willing,” he says, “ for the ease of our subjects, to take the charge of the coinage thereof upon ourself.” It was in these proclamations that the system began of charging the government with the expenses of the coin¬ age of this country. The merchants and others, who were interested in saving both the duty and the expense of coinage, took advantage of the last-mentioned procla¬ mation, and, by memorials, represented to the king and 1 These totals do not precisely agree, as is frequently the case when sums are stated in Roman numerals. C O I N A G E. 35 Coinage, his council the great advantage which trade and the coun- try at large would derive from the sovereign taking upon himself, as a permanent charge, the expense of coinage; they also represented that a great increase would take place in the quantity of money, if coined free of any charge to the importers of bullion. As these representations were irreconcilable with the just principles of public wealth, and as they were brought forward by persons ig¬ norant of the consequences which would attend their exe¬ cution, we doubt much whether they produced the effect which interested individuals were so desirous of obtain¬ ing. In the 18th year of the same reign an act was pass¬ ed, exempting in future the importers of bullion from all charge of coinage, and this act has continued in force till the present day. As the science of political economy was very little un¬ derstood in the period here meritioned, it is not to be won¬ dered at that the voices of a few interested individuals could procure the passing of an act so plausible. There can be no doubt but Charles and his council were swayed by the apparent knowledge which those individuals evinced of the practical details of business, and trusted to their representations being correct; but a practical knowledge of business, founded upon mistaken principles, must lead to erroneous conclusions; and it is easy to prove that Charles and his council were imposed upon by these prac¬ tical men. This country would at least have been equally rich, and the quantity of coined money in no degree diminish¬ ed, if the charge of workmanship had been continued upon the coinage; for the quantity of money in a country that possesses no mines of its own must be regulated by the pro¬ duce of its land and labour, or, in other words, the quantity of exchangeable commodities; and as the quantity of ex¬ changeable commodities increased, so would the quantity of money be increased, except in as far as good husbandry, or increased value of the precious metals, could make it be spared to circulate them. As the charge of coinage could have no effect in diminishing the quantity of the precious metals that would be imported into the country, the por¬ tion of this bullion that would be brought to be coined would depend upon the demand for coin ; and this de¬ mand would regulate the profits which the individuals who did coin could make by it, either in trading with it themselves, or by lending it to others. If there were a charge for coinage, there would, strict¬ ly speaking, be a less quantity of bullion imported, be¬ cause we should have a less quantity of money than we now have; but that money would be more valuable. A guinea, or 5 dwts. grs., would be more valuable than 5 dwts. grs. of gold bullion; and consequently fewer of them would be requisite for the circulation of the same amount of commodities. The effect would, therefore, be to increase the quantity of commodities, and to lessen the quantity of bullion or coin. luestion The policy of Charles’s measures with respect to the 9 to the coinage has been questioned by various writers. And, lects ot a in fact? the principle of a seignorage, so often agitated, has ignorage. never jjggn satisfactorily settled. Lord Liverpool, in his excellent Letter to the King upon the Coins of the Realm, conceives that a seignorage upon our gold coin, which is the standard money of our country, would necessarily cause that measure of property to be imperfect. His lordship has not favoured us with any account of the nature of the imperfection that would have been created by charging a seignorage upon our gold coin. The only imperfection that could be called into existence, we apprehend, by charging the expense of coinage upon gold, would be the alteration which it would make in its value. L.100 of gold coin, chargeable with an expense of coinage (say of 1^ per cent.), would, v/hile the king preserved the monopoly of Coinage, coinage, be more valuable than its weight of uncoined ^-y-*** gold, and consequently would alter the state of debtor and creditor, as well as require the government to pay her annuitants, and other branches of her expenditure, in a currency more valuable than before the charge of seignor¬ age was imposed. Let us, for example, suppose that we had only coins of gold in this country, and that a seignorage to the amount of the expenses incurred in their manufacture was im¬ posed by the legislature, say of 17] per cent.; it must be evident that L.100 of such coins would be more valuable than their weight in bullion of the same purity, by the ex¬ pense of the coinage. Every L.100 of such gold currency, therefore, would purchase not only its weight of bullion, but per cent, more, as the expense of converting such bullion into coin. As no legal coin can be obtained but where this charge is made, the market price of gold would thus be per cent, under its mint price. If the seignor¬ age exceeded the expenses of the coinage, so as to afford a profit to the illegal coiner, supposing him to coin money of the legal standard in weight and fineness, then would the value of the currency be reduced by such illegal addi¬ tions to its quantity; the market price of bullion would approach to its mint price, but would fall short of it by the real expenses of the coinage, and would thus destroy the profits of the illegal coiner. It will also follow, that L.100 of such currency would purchase a greater quantity of any commodity than its weight of bullion of the same purity would do, and that by the expenses of the coinage, or 11 per cent. By the imposition of a seignorage, there¬ fore, the price of bullion and commodities would expe¬ rience a fall, limited, however, by the real expenses of the coinage, no laws having yet been devised to prevent ille¬ gal additions to the currency. We should not, however, apprehend that the coins fabricated under this system would in any degree be imperfect; on the contrary, we think that a considerable national advantage might have been the result, had such a principle been adopted at the British mint. As the value of the coins would be increas¬ ed, so would their quantity have been diminished. A smaller amount of currency would have circulated the same quantity of commodities ; and the gold thus relieved from the channel of circulation would, in the hands of in¬ dividuals, have become capital, the nation deriving all the advantages of its reproduction, with a profit. The second objection of Lord Liverpool, if well founded, would certainly render it impolitic in the legislature to enact a seignorage upon the coins constituting the princi¬ pal measure of property, either as a present or primary principle in the government of the mint. “ The merchants of foreign nations who may have any commercial inter¬ course with this country estimate the value of our coins only according to the intrinsic value of the metal that is in them; so that the British merchant would, in such case, be forced to pay, in his exchanges, a compensation for any defect which might be in these coins; and he must necessarily either raise the price of all merchandise and manufactures sold to foreign nations in proportion, or submit to this loss.” If the imposition of a seignorage had no effect in aug¬ menting the value of the coins, Lord Liverpool’s objection would be correct; but we have already stated that the coins acquire a value proportionate to the expense of the coinage, which is the natural limit of a seignorage, where the laws cannot prevent illegal additions to the amount of the currency. If so, the relation between the foreign and British merchant would in no degree be changed; they would continue to buy and sell, with the same advantages as before the seignorage was imposed. There would, it is true, 36 C O I N A G E. Coinage, be some differences in price, but not sufficient to affect the All the advantages of a seignorage may be obtained, with- Coinage. 'w-y-w relative interests of the parties. For example, if a seignor- out such seignorage being deducted from the weight of age of 1A per cent, were imposed upon the currency of the coins. England, while that of Hamburgh remained without al- From the arguments we have adduced, we. should be teration, it must be evident, from what has already been justified, we apprehend, in approving of the principle of a stated, that a fall in the price of British commodities seignorage, even upon the coins vvhich constitute the prin- would take place in consequence. But this fall in prices cipal measure of property, provided it did not exceed the would not be confined to British commodities alone ; the mere expense of the coinage of such coins ; for where a foreign commodities brought to the English market would seignorage is charged, there.is a.tendency, as w.e Lave al- necessarily undergo the same reduction ; yet the foreign ready noticed, to a fluctuation in the value of that cui- merchant would not be subject to any loss in consequence rency ; an evil which should be avoided as much as pos- of this fall in the price of his commodities, for the reduc- sible. Where an extensive paper currency is used, as in tion in the price of English goods would enable him to England, this evil is considerably increased, even though buy as much cheaper as would compensate for the dimi- the issuers of it aie liable to pay it in specie on the dc- nution in the price of his foreign wares; neither would mand of the holders ; still, both their notes and the coin the British merchant be subject to any loss by the fall in might be depreciated to the fulf extent of the seignorage, prices, since he would be enabled to buy foreign commodi- before the check wdiich limits the circulation of paper ties so much cheaper as to compensate for the reduction could operate. If the seignorage on our gold coin were 5 in the price of English commodities. per cent., for example, the currency, by an abundant issue The exchanges with foreign nations would be regulated of bank notes, might be really depreciated 5 per cent, be- by the same principle. A merchant in London, for exam- foie it would be the interest of the holders to demand com pie, wanting to remit L.100 to his correspondent in Ham- for the purpose of melting it into bullion, the legal check buro-h, to discharge a debt which he owed there, would, to restore it to its proper value. If the seignorage amount- wfith his L.100 of English currency, augmented 1£ per ed only to the mere expense of coinage, which is about cent, in value by a seignorage, buy upon the London Ex- 10s. per cent., that would be the whole fluctuation in the chano-e a bill upon Hamburgh, entitling him to a quantity value of our legal currency, even though bank notes, pay- of Hamburgh currency, equal in value to L.101. 10s.; and able on demand, formed the most considerable portion thus would bills upon Hamburgh be said in the London of the circulating medium. market to be at a discount of H per cent. But England When Charles II. annulled the law for charging a seig- would not gain by this discount upon Hamburgh bills ; for, norage upon our coins, he must have caused that altera- let us suppose that a merchant in Hamburgh wished to dis- tion in the value of property which we here state as the charge a debt in London of L.100, all bills on London, sold reason why we cannot recur to it again, consistently with in Hamburgh, would, upon the same principle, be sold at a our national honour. And a late act respecting coinage,, premium equal to the increased value of the currency in which allows a seignorage to be charged upon silver of England, to which these bills entitled the holders of them. 4d. per ounce, but which directs that no charge whatever As a nation cannot permanently import to a greater shall be made on gold, it being the standard of property, amount than it exports, so the holders of bills in London is therefore a wise measure, as it preserves the integrity upon Hamburgh could not permanently exceed the hold- of that standard which has existed for upwards of a cen- ers of the bills in Hamburgh upon London; so that the tury, and by which the value of all property has been re¬ discount on Hamburgh bills in the one case, and the pre- gulated. mium on London bills in the other, would necessarily ba- If a seignorage, therefore, is ever charged, it should be lance each other ; and hence, if we are correct in our ar- from the first introduction of coined money in a state, and