California gold mill practices
By: by Ed. B. Preston.
Contributors: Crawford, J. J.; California State Mining Bureau.
Series: California State Mining Bureau. Bulletin -- no. 6; Bulletin (California State Mining Bureau) -- no. 6.
Publisher: A.J. Johnston, superintendent state printing
Published: 1895
Place of publication: Sacramento, Calif
Language: eng
Number of pages: 85
Subjects: Gold -- Milling -- California.; Gold mines and mining -- California.; Mines and mineral resources -- California.
Notes: At head of title: California State Mining Bureau.

"J.J. Crawford, State Mineralogist."

"San Francisco, September, 1895."