(en 
It consists of a three story front in which are the drawing rooms, 
lecture and class rooms, and offices, and a series of one stery rooms for 
the shops; the separate shops are bound tegether and to the front by a 
large corridor that serves also for museum purposes. 
LIGHTING. 
Considering the lighting first, the effort was to have as much lighting 
from the sky as possible; and as the large area of the roof made a trouble- 
some accumulation of snow probable at times, a sloping roof with small 
pitch was taken and large skylights used to give the desired openings. 
These openings are glazed with a maze glass that is reinforced with wire 
netting, and this has heen found to give a light distribution that is satis- 
factory. The saw-tooth form of roof was discarded in the design because 
of the possible snow accumulation in the valleys. The skylights are used 
in all the shops and for the drawing rooms in the third story of the front. 
In the rooms in the front where skylighting cannot. be esed, the windows 
are made to extend to the ceiling and to be as large as safe wall construc- 
tion will permit. 
The artificial lighting is principally by GO C. P. incandescent lamps. 
In the drawing rooms these are arranged in groups of four close under a 
whitened ceiling. This arrangemeut is used also in the lecture rooms, the 
forge shop and foundry. Jn the machine shop the arrangement is supple- 
mented by individual lights at the ends of arms made of flexible tubing, 
and in the wosod-working room, mereury vapor ares are used for the ceiling 
lights, with the individual lamps at the benches and lathes. In the wash 
and toilet rooms the light is distributed by individual ceiling lamps. 
HEATING AND VENTILATION. 
It was censidered desirable that the heating and ventilating be by 
separate systems. The heating is done by radiation from steam heated 
radiators that have automatic control. These are coils of pipe that 
are suspended from the ceiling in some portions of the shops and wall 
radiators in other parts, and in the front portion of the building. The 
steam is generated in the central heating plant of the University, and is 
brought to the building in covered pipes in a tunnel. 
The ventilation is accomplished by taking air from outside the build- 
ing and after passing it over steam heated pipes in a Chamber in the. base- 
ment, where it is tempered to 67° F., forcing it through ducts in the walls 
