Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 98
res of hvdro- to go further into the theoreticalaspect, and would refer any oneinterested back to a paper read by himin 1911 before the Society of Engi-neers, wliere the theory of the subjectis investigated more closely. It is out of the question for practical—that is to say, commercial—purposesto… … Fig. 5.—Bedroom lighted by a single Bijou burnor over dresssiiig table, controlled by push-button pneumatic switch, illumination on dressing table 8 ft.-candles. carbons which wo use is, unfortu-nately, very scanty ; nor, moreover,are we certain of always getting thesame proportions of ingredients…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
