Bisbee daily review., 1908-01-26
Mining, Shelters & Stock Quotations
SILVER PRODUCTION FOR THE YEAR 1908
Complete Statement of loca- ton and Amounts In Mining
 the White Metal.

The total silver product for 1906 was as usual, divided about evenly between siliceous ores, copper ores, and lead ores. In percentages of the total the division was as follows:
 Siliceus ores, 29.3 per cent; copper ores, 27.7 per cent; copper-lead ores' 11.S per cent; lead-zinc ores, 1 per cent; zinc ores O.2 per cent; placers. 0.3 per cent. As compared with the product in 1905 the output in 1906 shows a small loss for siliceous ores, larger lass from lead ores, a small gain from copper ores, and rather heavy increase from mixed ores. The states rank as Follows: Colorado, Montana, Utah, Idaho, Nevada, Ari- zona, and California.
 The placers yielded 17l,05S ounces of silver as a by-product, a gain over 1905 corresponding to the greater yield of placer gold.
 The total quantity derived from dry and siliceous ores was 16,792, 799 ounces, as against I7,1S7,SS9 ounces in 1905. sThe important states rank as follows: Nevada, Colorado, Mon- tana, Arizona California. Although the total is large, the proportion of sil- yer derived from ores in which that metal pre-dominates is small. This emphasizes the fact that silver is practically a by-product Of smeiting ores and goId-silver milling ores. and explains why the rise in value during the last years has fqli1j to increase the production greatly. Nevada pro duced nearly 6.5O0,000 ounces of sil- vsr from siliceous ores, chiefly from Tonopah, but even these ores contain 1 part Of gold to 3 parts of silver, by value The Colorado production close 1y approaches that of Nevada, but here, again, most of it came from mixed ores, either pyritc or siliceous, which are concentrated and smelted and which also contain lead, copper or gold; or from the gold-silver ores, partly free-milling from the Gilpin or San Juan regions. Montana has in Granite county a district of purely silver ores, but the yield from this source fell off in 1906, the largest quantity of silver produced in Mon tana being derived from Butte copper ores. The output of the state from siliceous ores is little over 1,225,000 ounces. Arizona comes next with al. most 600,000 ounces, but in no other state does the quantity reach half. a million ounces. The silver is re- covered by amalgamation or cyanide processes; from smelling ores by de silverization, of lead bullion, or by electrolytic refining d copper.
 From copper ores 15,SS0,S7o fine ounces were recovered. The increase over 1905, in spite of heavily in creased tonnage, is explained by the low tenor of copper ores in silver. The states rank as follows: Montana, Utal, Arizona, California, Idaho, and Colorado. Montana yielded nearly 10, ,000, ,000, the largest silver produc- ton in any state from any one kind of ore. This represents a decrease of about 100000 ounces from the fig ures of 1905, in spite of heavily in creased tonnage. Arizona, from heavy tonnage produced only 1,750.- 900. Utah, from much smaller ton mage, produced over 100000 ounces. None of the other states reached the one million ounce mark. The extrac- ton of gold and silver per ton from the ore of the principal copper camps runs approximately as follows:
 Gold and silver produced in prin-