Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 404
rector of the Com-pany. It is added that Messrs. Hopkins andWilliams, Ltd., London, have alreadybeen granted, by the Travancore Govern-ment, a lease for twenty years of 150acres of monazite sand groiuid. Ascientific staff has been organised, and itis hoped that operations will be begun inOctober… … Fig. 2.—A gangway in the same works lighted by Tilley high-pressure gaslamps. Smaller 100 c.p. units are used to light the benches. 398 THE ILLUMINATII^G ENOtNEER (sept.) HOLOPHANE INDUSTRIAL LIGHTING. An opportune booklet issued by Holo-phaiie, Ltd., deals with the new Holo-phane reflectors for…
Lighting
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