Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1903)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 85
cid or water, and then placed in a glass or earthen jar containing the bichromate solution and the carbon plate. The acid diffuses through the porous cup rapidly enough to attack the zinc, which, being well amalgamated, prevents local action. The hydrogen travels from the zinc through the porous… … Zinc and carbon in bi-chromate solution.
Electricity · Magnetism
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