634 The Architectural Review and American Builders' Journal. [April, four inch cast-iron pipes inside of the building, easily accessible, and falls into large drains leading into the main cul- vert. Sewerage — The main culvert is 2,032 feet in length. It is 35 inches from top to bottom in the clear, built of brick laid in hydraulic cement, egg-shaped, the smaller part being at the bottom. Through this culvert — intersected by branch culverts at various points in its course — all the drainage from the build- ing, and much of that from the grounds, is carried off. Bath- Rooms, &c. — There are twenty- one bath-rooms and as many water- closets in the building in addition to those in the patients' rooms. Sixteen are in the wards. Each bath-room has in it a cast-iron bath-tub, covered with zinc paint, possessing improved arrange- ments for the admission and discharge of water through the bottom. In addi- tion to the ordinary hot-air flue, there is a coil of steam-pipe, for direct radia- tion, in each, so that when hot baths are used the temperature of the room may be made so high, as to prevent the sensation of chilliness, when coming from the water. The water-pipes in these rooms are -generally of galvanized iron, left exposed, so as to be readily accessible, and passing from story to story, through castings, made for the purpose, so that in case of leakage the ceilings may not be injured. The water-closets are of cast-iron enameled, have no traps, but are open, so as to have a constant downward draught of air through them into the main chimney, as have all the sinks, bath-tubs, &c, in the whole establish- ment. The water is let on by the open- ing of the door. The wash-basins in the wash-rooms are of marble, with strong swing- cocks. The sinks are of cast-iron, and have hot and cold water at each. There is also an iron hopper to each, into which the slops, &c, are emptied. There are permanent fixtures for securing the towels in each wash-room. The drying- closets are sufficiently large to contain a bed ; and, like the closets for buckets> &c, have flues leading into and from them, thus securing a direct communica- tion with the fan below and the venti- lating ducts above. All these arrange- ments in each ward are clustered to- gether, and have scarcely any wood, in any part, to absorb moisture, or retain unpleasant odors. Supply op Water. — The hospital is supplied with water from a well 25 feet in diameter, containing 50,000 gallons. By means of one of Worthington's com- bined direct acting steam-pumps, capa- ble of raising 10,000 gallons per hour, this w r ater is forced, through 708 feet of six-inch cast-iron pipe, into the four boiler-iron tanks in the dome, whence it is distributed through the entire build- ing. These tanks are 103 feet above the well, and contain 21,000 gallons. They are so arranged, that one or all may be used at pleasure, having over- flows, and pipes through which the sedi- ment may be washed out, whenever deemed desirable. The elevation of these tanks is sufficient to secure the feeding of the steam-boilers, when carry- ing a pressure of forty pounds to the inch. These tanks were made at the works, and put in place before the roof was on the building. It is intended that they shall always be nearly full of water, and a small pipe, leading from them to the engine-house, tells the en- gineer on duty when that is the case. There is also, in the engine-room, a single Worthington steam-pump, capa- ble of raising 5,000 gallons per hour, intended to prevent any possible defi- ciency of water, should an accident hap- pen to the larger engine. The rule is that both should be used some part of every day, so that, in case of emergency, there may never be a doubt of their being in working order. The tank for supplying the centre building with hot water is 12 feet in leimth
