Instructions for collecting, testing, melting and assaying gold [microform] : with a description of the process for distinguishing native gold from the worthless ores which are found in the same locality and the chemical tests and necessary apparatus to be used for testing gold, silver, platina and mercury : the whole being simply arranged and free from scientific technicalities for the use of persons who are about to visit the gold region of California /
Kent, Edward N.
New-York : E. N. Kent,
1848
"Catalogue of prices for apparatus and chemicals described in this work, and for sale by the author, at 116 John-Street, New-York"--p. [40]
Sabin 37469
Microfiche.
Gold
Gold
Chemistry, Metallurgic