History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c15.60

c15.60

“In amalgams a single or double layer of a superior metal is made to cover a piece of a base metal. Copper or silver may also be placed between two leaves of a superior metal. A copper piece may be covered over with a gold-leaf, the surfaces and edges being smoothed; similarly a piece of any base metal may be covered over with double leaf of copper or silver, the surfaces and the edges being smothered.”\