77 



It consists of a three story front in wliicli are the drawing rooms, 

 lecture and class rooms, and offices, and a series of one story rooms for 

 the shops ; the separate shops are bound together 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 snov,' probable at times, a sloping roof with small 

 pitch was taken and large skylights used to give tlie desired openings. 

 These openings are glazed with a maze glass that is reinforced with wire 

 netting, and this has been 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 whcro skylighting cannot be nsed, the window.^ 

 are made to extend to the ceiling and to be as large as safe wall construc- 

 tion Avill permit. 



The artificial lighting is principally by 00 C. P. incandescent lamps. 

 In the drawing rooms these are arranged in groups of four close under a 

 wliitened ceiling. This arrangeuK'nt is used also in the lecture rooms, the 

 forge shop and foundry. In the machine shop the arrangement is supple- 

 mented by individual lights at the ends of arms made of flexible tubing, 

 and in the wood-working room, mercury vapor arcs are used for the ceiling 

 lights, with the individual lamps at the benches and lathes. In the wash 

 a!:d toilet rooms the light is distributed by individual ceiling lamps. 



HEATING AND VENTILATION. 



It was considered desirable that the heating and A^fintilating 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 trout portion of the building. The 

 steam is generated in the central healing plant of the TTnivorsity, and is 

 brought to tlie building in (•dvta-od |iipcs in a luiinel. 



The ventilation is accomplished Jty taking air from oulside the build- 

 ing and after ]iassing it oror steam heated pii>es in a chamber in the base- 

 jnent, >vhere it is tempered to 07° F., fprcing it through ducts in the walls 



