Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 85
iihalf this, but for the photographwe used the ^\ hole. On the settee inthe centre and on the walls the illu-mination was measured and foundto be just about 1 foot-candlc. The THE ILLUMINATING ENGINEER. size of the room was 2-4 ft. Xl8 ft. ;therefore, we get the simple rule thatapproximateh 50… … Fig. 6.—Acetylene Hare light and generator,as used for the illutnination of the houseshown in Fig. 5. a certain size, 30 c.-p. for 100 squarefeet floor-space, costing about Id. perhour, would usualh* be quite sufficient. Country House Lighting. At this point it may be of interestto give some…
Lighting
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