Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 600
CJas Lighting at Edinburgh (J. G. L., October 14th).Neue Schwachstrora-Fernziindung {J.f. G., September 27th).Signallampen zur Markierung von ELsenbahniibergangen auf Landstra.^.sen (J.J.G. October 4th).fiIiclairacre des Pa-;sages au Ni\eau (Rer. des Eclairages, September 30th). CONTRACTIONS USED.… … CLEANLINESS Xo <j;l;iss reflector on theniarkcl collects so little dust.This is due to its hein.tj per-fectly smooth and round andhavin.ii o .jfrooves either lar.^cIII- small upon its surface.
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
