130 FORTY-—FIRST CONGRESS. Sess. H. Ch. 108. 1870. ¥¤¤P*°'°· wherever any remote danger may be apprehended, but those sections bem°m' tween the stores and their cellars will be laid with wooden joins, the intervals between which will be counter-coiled and filled in with a layer of hair·mortm· two inches thick. All the wooden floors of the building which separate the upper stories will be eonsiructed with these same pre. cautions against the progress or communication of fire from one story to another. The floors of lobby and private entrances to the upper stories will be laid with encaustic English tile, and the rest: of the floors of this and the upper stories of best narrow North Carolina pine. All the principal partitions of entrance story to be constructed of brickwork. The fronts of the stores to consist mainly of French plate glass of first quality, set in hard-wood finish. The upper stories will be divided 0H` by what externally shows as pavilions, into fire·pro0f compartments formed by substantial brick partition walls; buts the minor subdivisions will be formed by studded partitions, thoroughly bridged and trussed where necessary, all plastered in threecoat, work with hard finish, proportionate cornices, pilaster-caps and centcr-pieces of ornamental stucco-work for the more prominent rooms. The outside walls must be stripped and Inthed, preparatory to plastermw. all the windows to have double box fiumcs and one and three-quarter inch thick sash. All the sash of fronts to be in imitation of French sash, to be glazed with best; crystal slneeuglass of double thickness, they, as well as the rear windows, to have boxed inside shutters. Door frames and modern-styled interior doors to be one and three-qum·ter inches thick. The trimmings of windows and doors to consist of heavy and bold moldings, well proportioned in width and projectionshand graduated for the different, stories. All the wushbourds to have sub-bases, screwed to the floors and top moldings. The roofs and cupola. must, be framed and trusscd in best and scientific manner. All the rooms inside the Mansard roof to be studded out square. Welbsecured and largest-sized skylights will run for the whole lengnh of the longitudinal corridors, so as to introduce an abundance of light and ventilation by means of shafts. Ornamental skylights on tcp of wclbholes of stairs will also serve for this purpose. Ornamental and heavy marble muntels for all the principal rooms. All the hardware required will be of me best American manufacture, suinciently strong for the different purposes, and in elegance graduated for the diH'erent stories and departments. Particular attention must. be paid to the successful and substantial execution of the pIumbcr’s work, with galvanized iron supply-pipes for Potomac water, sufficiently large to feed fire-plugs for two-inch hose in each and every story. Globe valves or compression stcpcocks must. be introduced in sufficient numbers to shut off each story, and again, each bathioom, or section of the work, independently, so as to reduce the ineonvennences to the particular locality where any repairs may be required hereafter. These stopcocks must be connected by tubes with the wastepipes, so as to empty the pipes without the possibility of injury to the building. All the plumbe1·’s fixtures, such as stationary wash-trays, ranges, sinks, washstands, water-closets, urinaries, and bath·tubs, must be of the best and most. approved patterns and manufacture; all of them will have independent, large-sized stink-Lraps, with trap-screws to afford best facilities for removing any obstructions. All this plumber’s work in upper stories must be set on lead—1ined floors, which must be connected by trapped tubes with the waste-pipes, so as not to expose the rooms to any contingencies of overflows by leaks in the connections of fixtures with pipes. All the wash-trays and sinks to be of scapstone or enameled
