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Light and lighting (1908)
Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 92
L Fig. l.^.Vrraugcinciit <>f circuit for scleniuiii cell (Ives).L, Light source ; S, Slnittcr : C. Selenium ; D, lialtery ; (1. (ialvanoinelcr, e H|—I—<HHF—/TLighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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