Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 558
iriiian oi the Editorial Committee. Gaster on The Use.and Abuse of Light.In the course of his lecture Mr. Gastershowed a great variety of sHdes illustra-ting good and bad methods of lighting.A special point was that the publicjudgment of an illuminant is muchaffected by the way it is used, and… … A view of the Kntrauce to the National Gas Exhibition (taken at night time bysirtificial light.) The outside of the building was illuminated by a series of Keith high-pressurelights with silica cup, and above the entrance was an illuminated sign bearing the ^\•ords National Gas Exhibition. 544 THE…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
