Compliments of J. ORMOND WILSON, Superintendent. CO _i o o IT o CO z: o DC U Li. U. U -3 '^' - ^J -o .>, r- ■J o-Y ^': / . I DESCRIPTION AND DEDICATION JEFFEESON" Public School Building, December 7, 1872, WASHINGTON, D. C, But our children will be as wise as we are, and will establish in the fulness of time those things not yet ripe for establishment-TuoMAs Jefferson. WASHINGTON CITY: -'• M'QILL & WITHEROW, PRINTERS AND STEREOTTPERS 1872. \ ' 1 I>ESCrtII»TI01V J^JSD X>EI>lCjiLTI03V JEFFERSON PUBLIC SCHOOL BUILDING. DESCRIPTION. The site on which the Jefferson Public School Building stands is located on tlie southeast corner of Sixth and D streets soutlnvest, a central position for the accommodation of the residents of South Wasliington. The parcels of ground of wliicii it is made up were purchased b3' the late Corporation of Wash- ington, as follows: Lot No. 8, from Thomas and W.W. Corcoran, deed dated March 13, 1845, for $750;' part of lot No. 9, from Joim M. Springman, deed dated May 12, 1860, for $3,525; part of lot No 9, from Patrick O'Brien, deed dated May 24, 1860, for $1,100; part of lot No. 9, from George Wright, deed dated May 23, 18G0,for $928 ; lot No. 10, from Richard Barry, deed dated May 12, 1860, for $7,320. It lias a front of 283 feet, average depth of 224 feet, contains 63,288 square feet, and originally cost, as will be seen from the statements made above, $13,623. Its present value is estimated to be $30,000. By an act of the City Councils, approved March 28, 1870, authority to erect the building was given to a committee, composed of the Mayor, to be ex officio chairman, three Aldermen, three Couticilmen, and four Trustees of Public Schools; and the requisite appropriations were made by the same act and a subsequent one approved May 9, 1871, and renewed by an act of the Legislative Assembly of the District of Columbia, approved August 23, 1871. The well-known architect, Mr. Adolf Cluss, was employed to prepare plans of the building and superintend its erection. Proposals were received in re- sponse to an advertisement, and a contract was awarded to Messrs. Hunt & Williams, their bid being the most favorable. Detailed descriptions of the various structures for school purposes in this city have been given from time to time, all of which reflect the highest credit on this community. Tlje most important of all, the Jefferson School Building, so named in honor of Thomas Jefferson, who, while President of the United States, was also President of the first Board of Trustees of Public Schools of Washington, and held that office for three years, is unique in many respects, most complete in all its appointments, and accommodates 1,200 pupils of various grades in 20 school- rooms. It has been attempted, in the design of this building, to subordinate the artistic to the useful, and to give in architecture an expression of the dominant sen- timents of our time. The same number of children that have been pursuing their studies on its site for years will pursue them in tlie new building, the only dif- ference being that they were formerly housed in temporary frames, and in fact cramped in disgraceful huts with seven-foot ceilings, and without an apology for ventilation. The immense structure will not draw a single child from other sections. The building has a main front of 173 feet in length, facing D street. It con- sists of a centre pnrt 111 feet in length by 59 feet in width, and has two adjoin- ing end wings, each having 31 feet in front and 88 feet in depth, with the facades projecting 15 feet from tlio walls of the center part. It has a basement 10 feet lii^li, a first and second story 1-i feet higii, a third story 15 feet liigh for school- rooms, and increased lieight for a puhlic hall, above which there is a trussed roof. The .scliool-roonis are distributed through the tliree princijial stories, so that the smallest children are located in the first, whilst those of riper years occuiiy in succession the two higlier stories. The size of school rooms must depend upon the number of pupils and the mode of seating them, as well as the teachers; and the number and width of the pas- sages must be regulated accordingly. Tlie regular number of pupils in one of our modern school-rooms is 60, and for seating tiiem the single-desk system has been uniformly adopted as possessing superior advantages. Our prevailing system of teaching requires blackboards for the whole length of available wall space, and consequently a wide passage all around a modest group of diminutive sen- atorial desks and cliairs in tlie center of the rooms. This requires an area of about 900 square feet, and with a clear height of \ i feet, a room of 12. GOO cubic feet in contents, or a minimum area of 15 square feet of floor space, and a mini- mum quantity of 210 cubic feet of air for each pupil. We call this a minimum, becau.se, on account of sickness and other unavoidable causes, the whole number of pupils are seldom present. The shape of the room is dependent upon tbe mode of lighting it, and upon the voice of the teacher, it being requisite that all the desks, and also the black- boards, on the inner side of the room, be sufficiently light; and as the height of the room is limited, so as not to over-tax the voice of the teacli«r or swell the cost of construction ami expense of heating, there results a certain maximum width of rooms, and tliis has been fixed at 27 feet. Theoretically it is preferable to have a sufficiency of light from one side, but with our modes of regulating it by shades there is no objection to have it from more than one side. To assist the teacher in his task, we make round corners on the side of the room opposite to his desk, and break the sharp corners formed by the intersection of side walls and ceiling by li^lit and comely cornices, with the lowest member formed of wood, and rebated out to receive hooks to wliich the maps and charts are attach- ed, and we seat the teacher in an elliptical niche, which acts acoustically like the spherical shell which experience and theory have uniformly suggested and pop- ularized for the shape of the prompter's box in opera houses and theatres. The basement of the building has been appropriated to playrooms, heating appara- tus, wash-troughs, coal-cellars, and the necessary rooms for a janitor. The first story, the window-sills of which are 10 feet above ground, so as to separate it more thoroughly from the noise and bustle of the street, contains two main entrances from front and rear, one for male and the other for female pupils, four school-rooms of 27 by 33 feet, and four school-rooms of 27 by 35 feet in size, with adjoining cloak-rooms 6 feet in width, containing the strips with clothes- hooks, shelving, and closets for teachers. The corridors are 15 feet in width, with tlie airy stair-cases on one end, and spacious vestibules on the other, to avoid draughts. Tlie second story has the same accommodations, and besides library or office rooms above the front entrances. The third story contains four school-rooms, with their dependencies, and a public hall, the gen- eral appearance of which recalls to mind the old lecture-room of the Smith- sonian Institution, which was noted for its acoustic piroperties. It is somewhat fan shaped, 110 feet in length and 56 feet in width. It has a gallery with a circular front, supported by light iron columns. In the construction of these rooms another object has been kept in view besides easy speaking and accurate hearing, namely, the distinct .seeing. It is desirable that every person should have an opportunity of seeing any experiments which may be occasionally per- formed, as well as of hearino; distinctly the explanation of them. By a fortunate coincidence of principle, it liappens that the arrangements for insuring unob- structed sight do not interfere with tho.se necessary for distinct hearing. The platform for spieakers or per.'brmers is placed between two oblique walls. The corners of the rooms, which are cut off liy these walls, afford retiring rooms. The ceiling is twenty three feel high, and therefore within the limit of percep- tibility. It is surrounded by a stucco cornice, but otherwise is smooth and unbroken, with the exception of circular openings for introducing light and for ventilation, in connection with sun-burners. Tlie seats are arranged in curves, and rise in accordance with the panoptic curve, which enables each indi- vidual to see over the head of tlie person immediately in front. The walls behind the platform are composed of lath and plaster, and there- fore have a tendency to give a more intense, though less prolonged sound than if composed of solid masonry. They are also arranged for exhibiting drawings for illustrations to the best advantage. The speaker is thus placed, as it were, in the mouth of an immense trumpet. The sound directly from his voice, and that from reflection immediately behind him, is thrown forward upon the audience, and as the difference of distance traveled by the two rays is much within the limits of perceptibility, no confusion is produced by direct and re- flected sound. " Limit of perceptibility" is called that interval of space within which the original impulse from the voice and its reflection from a wall may follow each other without appearing separately. Though in all cases a reflected sound must be sent back to the ear, no echo is perceptible in a crowded room from a near wall, because the difference in time in which it reaches our ear is too small for the powers of perception of our mental organs. Again, on account of the oblique walls behind the speaker and the multitude of surfaces, including, the gallery, pillars, projection of foul-air shafts in the corners of the room oppo- bite the platform, etc., as well as the audience directly in front, all reverberation is stopped. No echo is given off from the ceiling, for this is also within the limit of perceptibility, while it assists the hearing in the gallery by the reflec- tion to that place of the oblique rays. Light is introduced into this hall by twelve high windows, which, to be in keeping with the principles of sound, should be furnished with plain but heavy woolen curtains. The gallery is lighted by the skylights in tlie ceiling mentioned above. These skylights are ten feet square above the ceilings, are brought up vertically eight feet above the fla-s of the roof, with glazed sides, but they have a closed ceiling, with a patent ventilator in the center, in contrailistinction to the horizontal hot-bed sash, which rather defies than assists ventilation. The walls and ceiling of the hall are plainly panelled and done in distemper; the lower part of the sides are wainscoted. The floors of the whole house are made of narrow, hard Southern yellow pine, laid upon yellow-pine floor beams, 16 inches in height, and have been thoroughly oiled, to facilitate cleaning them. The oiling should be repeated occasionally, and if attention be paid to cleaning the floors with moderately warm water, they will come up to all the requirements of cleanliness, health, and pleasant appearance. All the floor beams are counter-ceiled 2 inches below their upper face and deafened with hair mortar, which counteracts the transmission of sound, and would stay the progress of fire from one story to another. The walls and ceilings of corridors and school-rooms are plastered on lathing, in order to prevent the condensation of water liberated from the heated winter air by contact witli the surface of the cold walls. They are plastered with the last coat consisting of a sand finish, which is most favorable for the tinting in distemper uniformly applied in shades of which blue forms an element, on ac- count of its beneficial effect on the eye. As such walls are liable to be soiled to a considerable extent by children, and to have the color rubbed off by their clothes, a wainscoting to the heiglit of the window-sills has been adopted, which consists of a base-stiip of hard wood screwed to the floor, narrow, rich-grained yellow-pine boards, and a capping forming the chalk-box below a strip of black plastering four feet wide, and extending all around the room. The tinting of the walls— a cheap operation—should be repeated by experts every five years for sanitary reasons. Every school-room is provided with two double doors, one of which leads directly to a corridor, whilst the other leads to it through the cloak-rooms, most of which are so arranged as to form a compartment between adjoining rooms, to pneVL-nt the tran.smission of souii'l. 6 All the doors are 4 by 8 feet in size, are glazed with fluted glass for trans- mission of light, without causing the attention of the pujnls to be distracted by observing what passes outside the room. These doors have also glazed, pivot- ing transom lights, 3 feet in lieight, for summer ventilation, l^ie doors are hung witii black Japanned, acorn-lop])ed hinges; have brass-faced mortice locks, lava knobs, and the necessary bolts. The construction of the two doors at both sides of the teacher's niclie does not interfere with the arrangement of the desks, nor does it expose the children to any drafts. In ti)e arrangement, number, and size of the windows it was designed to bring them as near as possible to tlie ceilings of the room. A great heiglit of window sills is desii'able, as acting against tlie influx of false light, and preventing ])upils from looking on the street from their seats. The size of all the windows is 4 by 9 feet; their number is four for all rooms that receive the whole supply of light from one side, and six where light is transmitted from two sides. Each window is provided with two rolling blinds of ojien-grained tinted stufl', one fastened at the height of the meeting rail, and the other at the full heiglit of the window. These sliados serve as a protection against the solar rays, and for regulating the light. "White shades would be hurtful to the eyes. A centralized heating apparatus, making use of low-pressure steam, offers many advantages when compared with any other system now in use, and having successfully overcome all the objections formerly raised against it, and having stood actual tests admirably, it can be considered as ]ire-eminently adapted for schools, and has therefore been unhesitatingly adopted. The equable, agreeable warming of the rooms, absence of the many fires, with the concomitant dust and dirt caused by the fuel, saving of labor in conveying fuel, and removing ashes, and the stopyung of the everlasting repairs by furnace-men, speak forcibly in favor of the new mode, wliich, being low-]iressure, is secure from danger. For heating the whole structure there are jilaced two boilers below the main entrances, which are so arranged and connected that either of tiiem can be used for heating tlie whole building in case of repairs or in moderately cold weather. The apparatus is self-acting, being supplied with a safety-valve for letting ofl" superfluous steam, and a self-regulating mechani.sm, which, when the steam reaches the highest point allowed, closes the damper, and shuts off all draught, by opening the flue door until the steam falls below its proper maximum. When it opens it again, the damper continues to work as before. The building is planned with the view of healing the main stories principally with circulated air, su])plied from stacks of coils located in the basement anli inclosed in brickwork, so as to form indejiendent hot-air chambers for all the rooms and corridors, which are fed by cold-air ducts from witliout, and transmit the heat to the rooms above by means of vertical tin-lined brick flues and wall registers. These ducts are of such size as to provide pure air in suificient quan- tities to replace that in the whole building once in every twenty minutes. This modern means of heating enables us to locate the sources of heat more advan- tageously than the old means did. Independent of the ]iosition of the smoke- stacks, they can be placed where most neeiled and least in the way, namely, at the coldest corners of the rooms. Those pu]iils sitting near the registers will not sufler from radiating heat, since its temperature will also be moderate, and an overheating of the system can never take place for reasons stated above. Our new Public School buildings aflbrd a niucli greater quantity of air (210 cubic feet for each pupil inside the school-room) than was allotted formerly. Tiie use of the spacious school rooms takes place only for a number of hours each day, with stated intervals. A forced renewal of the air by mechanical a]i])liances, such as is necessary in hospitals, is therefore not resorted to, and arrangements have been instituted, based u])on extraction by means of high, heated shafts. The results aclueved have, in the case of the Franklin School Building, full}' realized all expectations, and have excited the admiration of the earnest men who take an interest in the matter. The efliciency of the system lia.s also been visibly proved by anemometers. Fflicicnt ventilation ujioa a proper basis could not have been effected before Priestly liad defined the composition of the atmosphere as it depends upon the removal of the foul or vitiated air, and the introduction of fresh air, which in winter must be previously warmed. The removal of the vitiated air from the school-room is effected by wall regis- ters, placed near the floor and on tiie side opposite to that with the hot-air reg- isters. These ventilating registers are connected with foul-air shafts, reaching down to the sole of tlie basement, where they communicate with two ascending shafts, (technically called chemin^e d'appel,) of an area equal to the aggregate area of all the foul air-flues discharging into them. In the Jefferson Building there are two such shafts of 26 square feet in area each. These shafts receive iron pipes, forming the smoke flues of the boilers, and are heated in this manner as long as these are in operation. Stacks of steam coils increase the draught thus formed by the rarefaction of the air. In damp spring or fall days, when the heating apparatus is at rest, gas heaters, placed within the ascending shaft, supfdy the motive power for producing the upward current, which is drawn through the registers in the rooms and foul-air shafts downwards, and passed oft' with sufficient rapidity to insure the perfect ventilation of the entire building. Since in this climate the heated term is taken for the annual vacation, no complicated artiflcial means are necessary for cooling the fresh air introduced. The work required for heating and ventilating this building was done in the best style and most satisfactory manner by the Messrs. A. R. Shepherd & Bros., of this city. In the external architecture of the building a combination has been aimed at uniting solidity and grace, so that the internal arrangement and purposes of the structure are revealed by its outside appearance. This required that the mate- rial should be characteristically brought out, instead of hiding it by the ephem- eral illusions of paint and putty. The bulk of the walls is therefore built of hard-burnt bricks, as an economical material, the durability of whicli is vouched for by monuments dating back many centuries, and the outside of the building is faced with select bricks of the best style, which, being oiled, present a surface defying the action of the elements. Ornamental arches and recesses of brickwork around the single, double, and triple segmental windows, with lieavy-molded keystones and lintels, and pilas- ters with intermediate fancifully-shaped brick cornices, crowned by a bold modillion cornice, enter harmoniously into the architectural design. The front and sides have a base of rusticated cut stone, six feet in height. The two semi circular main entrances are columnated, with richly-carved caps, enriched friezes, and acroterias, all of tooled cut-stone. A continuous belt-course of cut-stone runs around front and sides at height of second-story window sills. Seneca sandstone, a durable and cheap material, the tint of which harmonizes, is used for tliese prominent features. The necessary wall-anchors are gracefully shaped, so as to add another feature to the design. The buihling is covered in with a modern slate roof laid to tasty patterns, in green, blue, and red, enlivened by dormer windows of varied shape, with the central one of the front made prominent, so as to serve for the purpose of a belfiy. These roofs are crowned by iron-crest railings, so as to form a pictur- esque sky line. The principal inside partitions consist of brickwork. AH the interior finish of the house, architraves, frames, doors, and sash, consist of a combination of best seasoned heart Virginia yellow pine and oak. They are put together with brass screws, left with their native color, and well oiled. All the doors of the house, interior and exterior, open outward. Tiie walls under- giiound are all plastered with cement on the outside, and drain pipes are laid around the whole building below the floor-line of the basement. Spaces in front of the building and on the side facifig Sixth street have been inclosed by wrought-iron railing, sodded, and ornamented by shrubbery and fountains. The water closets are placed in a separate building in the j'ard, approached by two covered corridors. The clocks and bells are all worked by electricity. A regulator in the Trus- tees' office communicates with and times the dials in all the school rooms, thus securing perfect uniformity in time and harmony in llie movements of the dif- ferent scliools. Single desks and chairs are provided for pupils, and the furniture is all made of the best material, and in the latest style. The desks and chairs for pupils were manufactured by J. A. Brancroft & Co., of Philadelphia; the teachers' desks by Wm. G. Sliattuck, of Boston; and the settees lor the large hall by J. W. Scliermeriiorn & Co., of New York. The building complete, with the furniture and the improvement of the grounds, cost about $]oO,000. The building committee in charge of the work during the greater part of the time consisted of Governor Henry D. Cooke, chairman ex ofiicio; Messrs Smith and Cross, of the Council; Messrs. Eoswell, Hunt, an