Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 366
Fig, 2.— Complete Mobile Projector Equipment. … Fig. 3.—Projectors for Night Operations in Mines. 356 THE ILLUMINATING ENGINEER (nov. 1916) CORRESPONDENCE. To the Editor of the IlluminatingEngineer COST OF DAYLIGHT vs. ELECTRICLIGHT. Dear Sir, There seems to be so much mis-apprehension, particularly amongst archi-tects, as to the point that…
Lighting
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