The receipt was taken originally from Gore's Electro-metallurgy, p. 208.
"On Laboratory Arts" by Richard Threlfall
Reference should also be made to the articles METALLURGY and ELECTRO-METALLURGY.
"Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3" by Various
ELECTRO-METALLURGY is that branch of metallurgy which uses electrical energy, wholly or in part, for the extraction or treatment of metals.
"The New Gresham Encyclopedia" by Various
Electro Metallurgy, 70, 238, 249.
"Inventions in the Century" by William Henry Doolittle
Stereoscope, Electro-Metallurgy, etc., with all their minute and recreative manipulations.
"Marvels of Pond-life" by Henry J. Slack