The Hunt and Douglas process for extracting copper from its ores
Subtitle: with an appendix including notes on the treatment of silver and gold ores.
Contributors: Douglas, James, 1837-1918.
Series: CIHM/ICMH microfiche series -- no. 07746.
Publisher: A.A. Kingman
Published: 1980
Place of publication: Boston
Language: eng
Format: Microform
Number of pages: 39
Subjects: Copper -- Metallurgy.; Silver.
Notes: Reproduction of original in: Library, Geological Survey of Canada.

Pre-1900 Canadiana.

Microfiche. Ottawa : Canadian Institute for Historical Microreproductions, 1980. 1 microfiche (26 fr.) ; 11 x 15 cm. (CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches ; no. 07746).