The mess hall and kitchen consists of an open brick and steel building, with brick walls, steel trusses, cement tile roof, no ceiling, and with concrete floor. The building is approximately 65 feet wide and 225 feet long. Forty-eight-inch ventilators are mounted between each pair of trusses. Steel factory sash with large ventilators are used throughout. All windows are barred and screened. The mess hall will also be used temporarily as an auditorium for speakers and picture shows. On the opposite wing from the mess hall is the kitchen, which will be equipped with steam cooking equipment. In the rear of the kitchen is the cold storage plant, consisting of vegetable, meat and ice storage rooms, and a complete refrigerating plant. In the rear of the mess hall is a covered concrete walk connecting same with the power plant. This walk is of permanent construction, with cement tile roof. The essential purpose of the shed covering the walk is to protect prisoners from the rain in going to and from the factories in the rear of the prison yard. The power plant is located at the end of the covered walk. It consists of a brick and steel building with cement tile roof and concrete floors. The boiler plant consists of three 200 H.P. boilers connected to a radial brick stack 6 feet 6 inches in diameter by 150 feet high. In front of the boilers is a concrete bin underneath the railroad tracks, which are on the yard grade. The power plant contains a 100 K.W. emergency lighting generator, switchboard, vacuum pumps, feed water pumps, heater, and piping. All buildings are supplied from the power plant with vacuum steam heat, hot water, and electricity through a system of tunnels which connect the power plant with all buildings. Hot water is also supplied to the several buildings from a large heater located in the laundry room. HOSPITAL To the left of the prison proper is located the hospital, as indicated on the ground plan. This building is of brick and concrete, with cement tile roof. In general, as indicated, the hospital consists of a central administrative and operative portion, connected to wings at either end by means of corridors which are also flanked by rooms. Racial segregation will take place by placing white and colored patients at opposite ends of the hospital. At each end of the hospital are provided surgical and medical wards, each connecting into a sun-room.