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Light and lighting (1908)

Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 590

An illustration from Light and lighting, 1908, leaf 590
ographs accompanyingthis article. These are taken entirely bythe actual hght in the rooms, and are notretouched in any way. The conditionsof exposure and development wereregulated \^4th a vi:W to reproducing theactual appearance of the interior. But the conditions illustrated in theshort note… … Fig. 2.—Another view of the Drawing Hoom lighted by a single semi-indirectahibaster bowl unit. The consumption of electricity is about ^ watt persq. ft. ; the illumiiiatioii IS ft.-caudles under the lamp and 05 ft.-candlenear the walls. {Natnral Photoijraph taken by Arlijrcial Li<jht). 576 THE…

Lighting

Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.

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