Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 286
Mey.roduccd from Part 2 of the Musketry Regulationt (Plateol) hy iHrmission of the Cotifroller ofH.M. Stationery Office. Miniature Cartridge Range, R.E. Depot, Chatham. would certainly find such a brightness in-tolerable in a dark room. There seemslittle doubt that the expansion of thepupil…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
