Arnold, Ross Harper, Hadley, Homer Langdon · leaf 82
U, OF 1 S r.. FOHM 3 GENERAL CONCLUSIONSThe results of tests made upon the indirect system of light-ing show that a one hundred • att yungsten invrrted lamp in theaverage size living room will give sufficient illumination fcrordinary purposes. In the room in which the tests v/ere made…
Lighting · Theses
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
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