Introductory course of natural philosophy for the use of schools and academies. Ed. from Ganot's popular physics. By William G. Peck (1869)
Ganot, Adolphe, 1804-1887, Peck, William Guy, 1820-1892 · New York A.S. Barnes · leaf 449
nd pressed with the fingers till it touches everypoint of the surface of the object, when it is left to hardenby cooling. After hardening, it is removed and is ready foruse. As gutta percha is apt to adhere to certain bodies,precaution should be taken to cover them with a thin layer of powdered… … Pig. 29i. is a non-conductor of electricity, it is necessary to cover itwith a conducting substance. This is done by laying on acoating of plumbago in the same manner as in forming themould. The mould thus prepared is then made ready forthe bath by attaching to it the proper suspending wires,…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
