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"...}}}: :::::::::::: § { . . . . . . . . . * * * * * * * * * * r * * * * * *:::::::::: ; : * : . . . . # * = s t , #4 & 8 !!!: ; ; ; ; ; ; ;' * {: * # , º, . . .'; • * * * * *: tº it? : * !:::::::::::::::: - ź * * * & a t t , t ; : , , , , " ' " * , t !!! * : * { * ::: * ~ * :::::: ::::::::::::: sº e 4 " ' " * * * * * . . . . . . . . . . ." * * * * & ... º. º...! * * * * * * * ſ:::::: ::::::::::::::: tº: . . . . . . * * * . . . . . . . . . r * , ; } # * ...: ; ; ; ; ; i ; : {, }, {{{f !?!! is: :::::: t & f * : * * * * . . . . . , t , ; ; ; # * :::$º tº: ... . . . . . . . * * : * * * ºf tº * * 3 * . . . . . . . . . :::::::::... ...!!!";::::: ; : ; ; * * * * * 9 : * * * ; ; ; ; ; ; * * . . ; ; 4 ; : * * t ſº • * * * * * * * * g * * & a f * * | * : • ? g * * * * * sº . . . * * * * * * * * * # * . . . . . . . . . :::{{`... . . . .'' ''': , , ; ; ; ; . . . ii º ' Q_\\ 3, 2) , B @ 94k HYSTERICAL CHEMISTRY. BY PROF. H. CARRINGTON BOLTON, PH.D. Reprinted from the CHEMICAL NEWS. LONDON. 1898. [Reprinted from the CHEMICAL NEws of Gan. 7th and 14th, 1898, Nos. Ig89 and 1890, vol. 77, pp: 3–5, 16–18]. --------------——-...--— — -- T -- ------ ------------ º- HYSTERICAL CHEMISTRY.” THE bizarre chemical theories, extravagant assump- tions, and preposterous claims advanced in the writings of a certain small group of men having some knowledge of chemistry and an intense desire for notoriety seem, to a conservative student of contemporaneous science, to be products of disordered intellects; these pseudo-philo- sophers call themselves “Monists,” and designate their peculiar doćtrines as “Unitary Chemistry,” but, from its emotional charaćter, it may well be styled Hysterical Chemistry. Their treatises generally have this feature in common ; the authors begin with accepted facts and rational theories, leading to legitimate deductions, but at a cer- tain point they allow their imagination to run riot, and thereafter the treatises follow most eccentric lines. The corner stone of their doctrine is the Unity of Matter, an hypothesis to which there is little objection per se, but they push it beyond legitimate bounds and graft on it corollaries of a most fantastic character. These authors spend very little time in laboratories, but claim to be working a revolution in chemistry and physics as well as in the sciences of philosophy and psychology by their publications; they complain that “official chemists '' will not do justice to their novel theories. “Our views,” writes one, “may appear strange to certain materialistic high priests of nineteenth-century science who imagine they know all and claim to explain everything, although they know and explain nothing,” and he appeals for righteous judgment to “impartial men of science, lovers of Nature, who divine her infinite power and know how to decipher her language.” Some of these authors boast that their ultimate obječt is the transmutation of metals, and, together with certain devotees of theosophy, astrology, and occult science, they have formed the “Alchemical Association of France,” an organisation whose workings, and affiliations I have discussed elsewhere. . * Read to the Washington Sečtion of the American Chemical Society, November 11th, 1897. - 4 Singularly enough these hysterical chemists flourish chiefly in that enlightened nation that has given to science such men as Lavoisier, Gay-Lussac, Dumas, Berthelot, and Moissan. The chief apostles of this new school are Louis Charles Emile Vial, F. Ch. Barlet, and François jollivet-Castelot, and their guiding star is August Strindberg, a Swede. Their publications fall within the last twelve years, but they quote two authors whom they regard as pioneers : Louis Lucas, author of “La Nouvelle Chimie ’’ (Paris, 1854) and Théodore Tiffereau, author of “Les Métaux sont des Corps Com- posés (Paris, 1855). The latter is, however, purely an alchemist. To the same school belonged Albert Poisson, who was founder of the “Hermetic Society of France,” and died in 1894.” All are cordially endorsed by Paul Sédir, “Papus ” (Dr. G. Encausse), and other occultists of high rank. The Monist philosophers do not accept the elementary Substances as chemical entities, and claim the unity of matter even though its forms appear diverse to our senses; they do not believe in identity, and are satisfied when analogies lead to a high degree of resemblance. They oppose these positive analogies to the “poetical and metaphysical concepts of official chemists,” and as disciples of Aristotle they do not believe in a constructive resemblance of bodies, but only in the acquisition by bodies of given properties under certain conditions. They further claim that “all bodies and all forces have a common origin, and that chemists can derive one from another at will, no matter how diverse the phenomena observed, whether rarefaction or condensation, combina- tion or mixture, attraction or repulsion, association or dissociation, addition or substitution.” They are not bound by principles of pre-established harmony, of finality, or other vacillating conceptions; they expect the analogies to be clearly demonstrated, and if the accepted nomenclature disappears so much the better (August Strindberg, “ Hortus Merlini; lettres sur la Chimie,” Edition de l’Hyperchimie, Paris, 1897). The Monists take for their motto: “Matter is one, everything comes from one, one is all.” They claim for this doćtrine great antiquity; it prevailed among the philosophers of India, Chaldea, and Egypt, and the alchemists of the Middle Ages represented it symboli- cally by a serpent biting its tail. The Monists extend the doćtrine of evolution to the chemical elements, and * Albert Poisson’s principal works are : (1) “ Théories et Symboles des Alchimistes '' (Paris, 1891), (2) “ Cinq Traités d'Alchimie des Plus, Grands , Philosophes.” Traduit du Latin (Paris, 1890); Nicolas Flamel, Paris, 1891. 5 assert that the infinitely small particles of primordial ether unite to form chemical atoms, which by self-evolu- tion generate the diverse elementary bodies. Hydrogen, or perhaps helium, is the starting point. According to Tiffereau the evolution of the metals is accomplished by special microbes called sporules. The views entertained by these philosophers are, how- ever, diverse. M. Vial is not properly a Monist; he pre- fers to refer all matter to two types, one personified by hydrogen and the other by oxygen; according to him, “heat and cold, which are positive and negative elements represented by hydrogen and oxygen, are the universal agents, the cause of all chemical and physical phenomena, distinét and opposite entities.” (L. C. Emile Vial, “La Chaleur et le Froid,” Paris, 1884). And yet he incon- sistently says, “Hydrogen is the divine principle of all things; by self-doubling it creates oxygen, which, being more condensed, and having generating power, becomes its second half.” “Light results from the embrace of the primitive hydrogen with oxygen, and their union gives birth to water; hydrogen is the masculine element, oxygen the feminine, and water, which is the first two- fold type of nature, generates nitrogen by self-doubling. Created by water, nitrogen is succeeded by carbon, fluorine, chlorine, bromine, iodine, phosphorus, and finally sulphur.” In reviewing Vial's essay, Jollivet-Castelot remarks, “This masculine hydrogen and feminine oxygen are veritable monstrosities, in spite of the ingenuity of the hypothesis,” and he points out that in attempting to con- struct a cycle of evolution of the chemical elements Vial is often obliged to alter their atomic weights to adjust them to the desired positions, though he brings forward no experimental proofs in support of these arbitrary changes. This complaint of one Monist by another is very amusing, for their disciples never use chemical tests to prove the presence or absence of a given element, but rely on analogies, the full meaning of which will appear later. Moreover the plaintiff in this case is one who gives the widest possible scope to his own amazingly free imagination. - In a recent work (“L'Amour dans l’Univers,” Paris, 1896) Emile Vial explains his position in the following language: “Unity is a duality of two opposite halves, just as an apple is composed of two half-apples. . . . . Unity is eternally divisible, and it is precisely this infinite divisibility that constitutes its duality.” Applying this view to chemical atoms he writes: “A gaseous atom is a unity formed of two antagonistic principles, one material and the other immaterial.” - 6 The mental operations of this transcendental philo- sopher are evidently conducted in four-dimensional space, and suggest the following catechism:— What is Matter 2–Never mind. What is mind 2–No matter. What is spirit 2–It is immaterial. F. Ch. Barlet, said to be one of the most eminent occultists in France, and one of the founders of the “ Université du Hautes Etudes,” a school for cultivating esoteric studies, has published an essay entitled “La Chimie Synthétique " (Paris, 1897) which exhibits the peculiar characteristics of hysterical chemistry. Barlet rehearses at length, and with some skill, the growth of chemical theories from the dualism of Berzelius to the Periodic Law of Mendeléeff, and he gives preference to Sir William Crookes’s method of representing the elements in order of their atomic weights by a spiral ; this graphic construction he improves (?) by changing the spiral into a horizontal plane, which he then divides into four equal parts by two sectors crossing at right angles. The chemical elements falling within these segments he finds correspond to the four elements of ancient philosophy, Fire Air Earth | Water and on this correspondence he bases all his subsequent ratiocination. It would not be profitable to follow in detail the mental vagaries which finally lead Barlet to present the following scheme. (Fire) H HCl, &c. Metals. NH3, &c. Strong acids. | Strong bases. (Air) cl—–8——-N (Earth) C1O, &c. NO5, &c. Weak acids. | Metallic acids. O (Water) Following the opinions of P. Leroy (Eudiste, * Essai sur la Synthèse des Forces Physiques,” Paris, 7 E892, 2 Nos.), he imagines the ether of physics immersed in a medium still more subtle called “Eon.” A mixture of ether and eon is the protyle of Crookes and the Astral Light of theosophy; in this medium the four elements are formed under the influence of quintessence, which after all is nothing but eon penetrating ether I Barlet concludes his extraordinary disquisition with the follow- ing lucid summary:- The principal doćtrines of this philosophy are “the periodical, continual evolution of the subtle into the dense, of eon into ether, of quintessence into matter, of the divine Fire attracted by the desire of Astringency, of the Spirit called by Matter, of the Being evoked by Nothingness; the formidable hierarchy of creatures which extends between the two poles of the Infinite, the cosmic life traversing their development as the fulfilment of that ineffable Mystery which manifests itself in the Inex- pressible Absolute l’” - “I smiled and said it must be so, In fact I thought so then, For there was much I did not know Of the Whatness of the When.” “All that exists lives, all that exists is evolved and transforms itself '' is one of the favourite tenets of the Monists, who designate it by the term “Hylozoism.” M. Jollivet-Castelot, a member of the “Groupe Indé- pendent d’Etudes Esotériques,” is the chief exponent of this doćtrine, having devoted to it an entire volume besides chapters in other works. (“La Vie et l’Ame de la Matière ; Essai de Physiologie Chimique,” Paris, 1894, “L’Hylozoisme; L’Alchimie ; Les Chimistes Unitaires,” Paris, 1896. “Comment On Devient Alchimiste,” Paris, 1897.) That which is commonly called inert or dead matter (metals, minerals, elementary bodies, even the physical atoms), according to Hylozoistic Monists, is not dead, but is possessed of life, analogous to plants and animals, but less active and conspicuous. Thus the three kingdoms of nature, animal, vegetable, and mineral, are brought within the influence of evolution. Some of the extremists go so far as to endow the atoms with feeling, instinét, and will (Fouillée, “Revue des Deux Mondes,” Oćt. 16th, 1886, p. 895), and maintain that the atom plays the same rôle in chemistry as the cell-germ in physiology. One element generates another by polymerisation, scission, agglomeration, substitution, condensation, &c., commu- nicating to it, by heredity, certain properties; these pro- perties, however, are combated by the tendency to varia- tion, the sexual selection of the chemical elements, and perhaps by natural selection aéting in the chemical world as in organised beings.” The author cited (Jollivet- 8 Castelot) writes, of the individuality of mineral beings as proved by their choice of colours, and of their “souls,” which, however, are inferior to the souls of plants and animals. “Admitting a human spiritism, there must exist a vegetable and a mineral spiritism, for we know that the entire universe is animated by an evolutive Intel- ligence organising Matter and condensing Energy.” “I will not go so far,” writes Jollivet-Castelot, “as to affirm that electricity is the soul, . . . . but I venture to say that electricity excites the spiritualistic phenomena, ac- companies them, and serves perhaps as an intermediary between conscience and organised matter.” Applying these extraordinary views to common physical and chemical phenomena, the Hylozoist states that “Water of crystallisation constitutes a kind of mineral respira- tion, demonstrating in a special way the Life of Matter. The substance has a positive need of water, absorbs it, utilises it, expels it, and submits to an evident motion of inhalation and exhalation.” This bizarre doćtrine is opposed by its disciples to the materialistic theories of scientists who would reduce mental activity to automatic mechanism, and they cite approvingly the profound epigram of Aristotle : “All motion is a kind of appetite,” as well as the saying of Liebnitz: “Nothing in nature is dead.” Great antiquity is claimed for this philosophical system. It served as a foundation for ancient Oriental religions; the priests of Brahma and of Buddha, the hierophants of Chaldea and of the sacred temples of the Egyptian goddess Isis, all maintained that the universe is living, animated, and evolved. Moreover the alchemists of the Middle Ages and eminent physiologists of ancient and modern times, have uniformly supported these opinions. In a few years the scientific world will doubtless be entirely converted to Hylozoism. A certain number of these hysterical chemists are de- voted to theosophy, and apply its principles to the more practical science; they claim that the true adept has no need of retorts, furnaces, or chemical menstruums, but he is capable of accomplishing the union and separation of atoms by the force of his will and the power of his magical faculties. Gustav Marqfoy is a writer on chemistry less fanciful than those cited, yet worthy of a place among hysterical chemists. In his “Loi des Equivalents et Théorie Nou- velle de la Chimie ’’ (Paris, 1897) he admits the unity of matter, and reduces the number of undecomposable bodies to 63. The equivalents of these 63 simple bodies are 9 prime numbers, forming a natural series from 1 to 3oo. The atom he regards as made of a nucleus and a plasma; the nucleus is the seat of energy. His view of the suc- cessive steps in the creation of the elements, in accordance with the arithmetical chain he discovered, is interesting, but not easily abstracted. - * In this group of esoteric students the most pićturesque personage is August Strindberg — a Swede by birth, a Frenchman by adoption, an Austrian by residence (tem- porary perhaps)—he is thus portrayed by one of his admirers:–Pale blue, dreamy, sympathetic eyes; a broad forehead, on which the fire of genius burns with brilliancy; slow of speech, with a marked Scandinavian accent, he attacks boldly the “routine and persecuting scientists;” a “superb man,” disinterested, mild, invincible in perse- verance, and seeking only the truth. Strindberg is a man of letters, being the author of successful romances and dramas,” and he claims to be a chemist, but his right to this claim can be better determined after analysing his pretensions. Strindberg accepts the theories of the unity of matter, the self-evolution of elementary bodies, the transmutability of elements, and hylozoism ; he even grants to matter the principles of heredity, memory, and love. His strength, however, lies in his peculiar method of demonstrating that the chemical elements are compounds, and in dis- covering new formulae for well-known substances. More proficient in manipulation than his Monist friends, he in- vokes results of laboratory work to confirm his demon- strations. With admirable courage he attacks problems in chemistry of herculean difficulty, and does not hesitate to undertake to disprove orthodox views of most funda- mental facts, such as the composition of the atmosphere, the composition of water, and all the important pheno- mena depending thereon. Exhibiting considerable know- ledge of the literature of chemistry, he is quick to discern in the earlier writings statements that he can turn to his advantage, ignoring the circumstance that the very state- ment on which he relies has often been shown to be erroneous by later authorities. He writes, for example, “Lampadius believed that carbon disulphide was com- posed of sulphur and hydrogen, had he said carbon and hydrogen I would bless his memory.” Avicenna, Albertus Magnus, Paracelsus, Boerhaave, Berzelius, Bunsen, and Clève are, for Strindberg, authorities of equal weight. He uses on one page the very arguments which on another page he condemns when employed by “official' che- * His “Sensations d'un Détraqué" was published in Figaro. His drama “Magda’’ was acted at the Renaissance, Paris, by Sarah Bernhardt, H. C. mists, and he claims that the latter suppress the dogma: of hysterical chemistry to avoid the unpleasant necessity of revising theories of scientific chemistry. “About sixty years ago,” he writes, “a French chemist decom- posed chlorine and obtained 3 per cent of oxygen, but his discovery was buried to save appearances '' (Hortus Merlini). Strindberg denies the idea of an undecomposable body. “Is there truly a chemist,” he asks, “who believes that iron dissolved in sulphuric acid is not decomposed ?” He uses current chemical terms with changed meanings: precipitation signifies reconstruction; solution signifies decomposition; and combustion, synthesis—an original nomenclature that obscures his writings. “The atom is an hypothesis, An hypothesis has no weight, therefore Atomic weight is a non-entity.” In spite of this remarkable syllogism, with which Strindberg opens one of his essays, he makes most of his discoveries (?) by juggling with the numbers representing these very atomic weights. When the molecular weight of a compound happens to be equal to the atomic weight of an element, or to the molecular weight of some other compound, he assumes that this accidental correspondence involves close relationship—if not identity—of substance, and he audaciously substitutes one formula for the other. In his “Introduction à une Chimie Unitaire '' (Paris, 1895), Strindberg opens the topic with the motto “Omnia in omnibus, omne omne est,” and proceeds thus : —“Bodies exist only in numbers and qualities ; bodies are neither simple nor compound. Chemical formulae are merely methods of expressing the manner in which bodies differ and correspond.” “That which is called hydrogen is neither a simple body nor a compound body; it is matter having the con- densation I. Carbon can be formulated thus: HI2 = C ; oxygen in the same way, H16 or CH4 = 16 = O ; nitrogen likewise, Hrá or CH2= I4 = N ; though nitrogen in com- bination may have the formula N2 = 28.” To the mole- cule of nitrogen he assigns the formula CO, because its molecular weight is 28. His method of reasoning is as peculiar as his choice of formulae :-“By assigning to ni- trogen the formula CH2 or C2H4, and to carbonic acid the formula N2O, a whole series of phenomen a hitherto obscure are explained. Thus the rôle of nitrogen in animal and vegetable economy : the nutrition of animals by carbohydrates, and the great excess of nitrogenous matter secreted ; the miraculous way in which plants nourished with water and air produce carbon and albu. II menoids without absorption of nitrogen and without sufficient carbonic acid, the latter being only an impurity of the atmosphere (4 parts of CO2 in Io,000 of air); the transformation of starch into albumenoids; and, lastly, the origin of the creation by water and air, even Pasteurised, at the beginning of time.” According to this ingenious philosopher, “that which is called air is neither a mixture nor a combination ; it is neither oxygen nor nitrogen ; it is both or neither. Since the atomic weight of carbon varies from II to I2 (?), nitrogen may be indi- cated by CH2 or CH3; since oxygen varies from 15 to 16, it may be represented by CH3 or CH4; therefore, in the conditions in which oxygen appears identical with nitro- gen, both are represented by CH3. Air is therefore CH3, which signifies oxygen and nitrogen.” Having thus established a novel formula for air, he proceeds to discuss on that basis its function in combustion, oxidation, and respiration : reverting to the alchemical symbol for air, A, he gives the following lucid diagram, which summarises the knowledge of hysterical chemists concerning the atmosphere:— N = CH3 = O /\ A– / \ . / Air. . \ Jº Strindberg takes up the chief elementary bodies and treats them in like manner; to chlorine he gives the formula (OH2)2 or 2H2O, and this, he says, explains the presence of chlorine in sea-water. With other well- known compounds he is equally successful :— H Cl (H2O)2 = H3O(OH) = COHz. And by applying his method to metals, he secures some startling results:— - Iron = (C2H4)2 = 56 Manganese = (C2H3)2 = 55 Zinc = (CH4O)2 = 64 Copper = (CH4O)2 = 63 Copper = C2H5C1 = 63 Silver = C2H5Br = 1 o'7 Gold = Fe2Si3 = I07 [Igó] Gold = Fe3S = Ig7 [2Oo] Sodium = C2 = 24 (23) - Calcium = C3H4 = 40 Nickel = C2H5P = 58 Cobalt = C2H5S = 59 Of the two latter formulae Strindberg remarks :-‘‘Cobalt and nickel have always been suspected to be compounds, and I believe I have solved the problem of their enig. matical atomic weights.” The fact that the above equations are not always true, that many of the arithmetical calculations are inaccurate, that a few of the substances formulated are purely imaginary, and that the atomic weights occasionally differ by a whole number from the standard, does not at all disturb the equanimity of this Monist philosopher; when discrepancies of any kind are pointed out to him, he simply responds :—“Chemists always find impurities in the flasks of others, and never in their own.” “Similia similibus dissolventur ; similia similia ap- petunt '' is another maxim that this author illustrates as follows:–Copper dissolves best in concentrated nitric acid because they have the same weights :- Cu = 63 = HNO4. Gold dissolves in aqua regia :- - Au = 197 = 2.HCl + 2NO3. Zinc dissolves best in sulphuric acid :— Zn = 65 = (CH4O)2. But CH4O = S, and Sulphuric acid diluted = SO4 + 2 H2O = 65 × 2. The chlorides in general are soluble in water, because of the constitution of chlorine, which is (OH)2 or O2H2. In his “ Hortus Merlini” (first letter) Strindberg under- takes to demonstrate the compound nature of sulphur, claiming for it a constitution analogous to a fossil resin. After a detailed study of its external properties and its physical changes when heated, he recounts some original experiments, such as reduction of melted sulphur by the green twig of a chestnut tree (!), and burning sulphur in 13 carbonic acid, which, he says, yields a deposit smelling like pepper; he claims that spectroscopic analysis of hydrogen flame shows the spectrum of sulphur; these and a score of equally convincing data go to prove that sulphur is a compound of C, H, and O. He ingeniously concludes thus:—“To require me to give a definite formula for sulphur would be indiscreet.” Elsewhere he writes of “selenium the parent of sulphur.” Perhaps the best example of Strindberg’s peculiar line of reasoning is found in an article entitled “La Synthèse de l’Iode,” published in L’Hyper-Chimie for January, 1897:—“Sea-water contains not a trace of iodine, and consequently the algae must produce it by synthesis. But living algae yield no iodine, and do not yet contain it. The ashes of algae, however, furnish iodine through the intervention of reagents; so it is evident that iodine is formed by a commutation of the crude materials in algae and reagents. The old method of extracting iodine was by treating the mother-liquors with sulphuric acid and manganese dioxide ; wherefore manganese ? Be- cause there exists an occult correspondence between the algae, iodine, and manganese, which manifests itself in the colours they yield. Algae occur of brown, greenish blue, reddish purple, and violet colours, and these same colours appear in iodine and in compounds of manganese.” Strindberg then points out that there is a constant difference of 46 between the atomic weights of Cl, Br, and I; and having previously demonstrated that the correót formula for Cl is (OH)2, he then seeks for the body which has the weight 46. Finding a choice of three substances, viz., L. - Ethyl alcohol = C2H6O = 46 Formic acid = CH2O2 = 46 Nitrogen peroxide = 2 = 46, he selects formic acid, because the starch in the algae is changed to sugar by sulphuric acid, and this sugar oxidised by manganese dioxide yields formic acid, so that he gets the following formula for iodine :- I = I26 = (CH2O2)2(OH)2. Later in this amazing essay he regards iodine as a derivative of benzene,— Oxyhydroquinone = C6H6O3 = I26 = I; as experimental proof of this correspondence he states that oxyhydroquinone heated with alcohol gives out a vapour that colours starch test-paper blue and colours bread yellow, just as iodine does. - I4. He offers to manufacturers of iodine practical sugges- tions based on these vagaries, which are too absurd to transcribe. - Denying the elementary character of the metals, Strindberg naturally believes in transmutation, and claims to have accomplished the “great work” in more than one instance. By dissolving pure copper in linseed oil, he finds in the product by analytical tests only nickel, and he claims to have obtained gold from lead and sulphur. He appeals to the transforming power of growing plants as proof of transmutation in Nature, and he ridicules the methods of official analytical chemists who examine the ashes of plants to ascertain the nature of the plants:— “Does anyone make an inventory of the treasures of a palace by setting fire to the four corners of a Raphael or a Rembrandt, and does he determine their value by the remaining traces of cinnabar, white lead, and chrome yellow 2 ” This convincing method of reasoning he employs in another connection :-‘‘People ask me if I can make gold, and I reply, ‘To draw the genealogical chart of the ancestors of a cat, I do not need to know how to make a cat l’” Though their theories and methods are indisputably original, hysterical chemists, so far as appears from their writings, have contributed nothing whatever to advance the science they profess to admire. If anyone of their number appears to be a genius, it must be remembered that “a genius is a man who is almost a fool.” More- over, paraphrasing Rabelais, “The world of fools hath such a store That he who would not see an ass Must bide at home, bolt his door, And break his looking-glass 1 '' E. J. DAVEY, PRINTER, 6 & 7, cre ED LA NE, LUD GATE HILL, LONDON. 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