Elementary treatise on electricity and magnetism : founded on Joubert's "Traité élémentaire d'électricité" (1909)
Foster, G. Carey (George Carey), Porter, Alfred William, 1863-1939, Joubert, Jules François · London : Longmans · leaf 163
in which a portrait ofFranklin is cut out; onthe other side is placeda white silk ribbon, c,and the whole is stronglyclamped between two slipsof wood, p. When a dis-charge is passed, the goldis volatilised, its vapourspass through the parts cut out, and reproduce the design in a violet-brown colour…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
