Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 220
tion from the walls has verylittle to do with the result, nor has reflec-tion from the dark bench in intensifyingthe light from the reflectors, althoughboth of these effects may perhaps bemasked by small differences in conditionbetween the mantles used over the benchand those employed in getting… … FIG tO POLAR CURVE OFLfiriP AND FITTING USEOOVER BENCHB lit FIG IB 206 THE ELLUMINATING ENGINEER [apro.)
Lighting
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