California State Mining Bureau · Sacramento : California State Mining Bureau · leaf 242
operation on copper ores for more than twoyears without such repairs. It is stated that an 82% recovery of theassay value of the feed was obtained with the Herreschoff furnace for SANTA CLARA COUNTY. 221 the 4 months ending with July, 1917.. The heads assayed approximately0.9% mercury, and… … Photo No. 24. New 90-ton Scott furnace at Senator Mine of New Alamaden Company.Photo by W. W. Bradley. A 90-ton double Scott fine-ore furnace was built in the early part of 1918. Ithas 4 fireboxes and handles a minimum of 75 tons per day, though it has treated upto 96 tons per 24 hours. It is thus…
Mines and mineral resources · Gold mines and mining · Mineralogy
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