Inside Out Library
A study of direct and indirect illumination (1912)
Simons, Alexander McDougall · leaf 56
3^gE?-Disf-r/bufqton of light qjorig line kKo> Prg Si Horizontal scale 1=5 -TTT £ bistributation of light along lineWNof Fig ^a. … , OF I. E. S FO^Lighting · Theses
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
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