Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 293
Abatement Exhibition. 2G4 THE ILLUMINATING ENGINEER. CORRESPONDENCE. New Methods of Obtaining Polar Curves of LightDistribution. 8iR,—The article in your issue forJaiuiary. 1912, on New Apparatusfor tlie Measurement of Light and Illu-miiu^tion. by J. S. Dow and V. H.JIackinney, has interested nie… … The Measuiement of Light. in llucourse of lectures on llhiiniiialiiigi^^iiginccring given al (lie Joiuis Hoji-kins Iniversity in 1!)1(). Tlie ajjpara-tus referred to is described and illus-trated in 2)p. 471-3 of the first volumeof the lectures. In the apjiaratus of(hi.s description which is…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
