Mineral Resources of the United States, 1914--Part I--Metals . rado mines during 1914 was $19,883,105 in gold,8,796,065 fine ounces of silver, 74,211,898 pounds of lead, 6,639,173pounds of copper, and 96,774,960 pounds of zinc (in terms of spelterand zinc in zinc oxide), with a total gross value in recovered metalsof $33,460,126, as compared with $35,450,585, a decrease in value for1914 of $1,990,459, or nearly 6 per cent. There was an increase of$1,736,189 in gold, a decrease of 529,190 ounces of silver, a decreaseof 13,685;875 pounds of lead, a decrease of 588,653 pounds of copper,and a decr
Mineral Resources of the United States, 1914--Part I--Metals . rado mines during 1914 was $19,883,105 in gold,8,796,065 fine ounces of silver, 74,211,898 pounds of lead, 6,639,173pounds of copper, and 96,774,960 pounds of zinc (in terms of spelterand zinc in zinc oxide), with a total gross value in recovered metalsof $33,460,126, as compared with $35,450,585, a decrease in value for1914 of $1,990,459, or nearly 6 per cent. There was an increase of$1,736,189 in gold, a decrease of 529,190 ounces of silver, a decreaseof 13,685;875 pounds of lead, a decrease of 588,653 pounds of copper,and a decrease of 22,571,469 pounds of zinc. The heaviest decreasein value was $1,747,877 for zinc, but there were decreases of $768,230for silver, of $237,303 for copper, and of $973,238 for lead. The average prices for metals for the calendar years 1913 and1914 were: Average prices of silver, copper, lead, and zinc in 1913 and 1014. Silver (fine ounce at New York) Copper (pound, electrolytic, at New York) Lead (pound at New York) , Zinc (spelter, pound at St. Louis). GOLD, SILVER, COPPER, LEAD, AND ZINC COLORADO. 265 The Globe, Leadville, Pueblo, Durango, and Salida smelters wereoperated continuously on ore from British Columbia. Canada, Colo-rado, Idaho, South Dakota, and other States, including a considerablequantity of zinc residues from Kansas and Oklahoma zinc United States Zinc zinc smelter, at Pueblo, was operatedsteadily on zinc-lead ores from various counties in Colorado, andalso from Arizona, Idaho, Nevada, and Utah. The copper-mattingplant at Ouray was operated steadily during 1914 and constructionwork on a 200-ton addition to the plant was completed early in Western Chemical sulphuric acid, magnetic separation,wet-concentration plant,1 at Denver, was operated steadily, as wasthe Empire Zinc 200-ton magnetic separation plant,2 at CanonCity, both treating chiefly Leadville zinc-lead sulphide ores. TheSutton, Steele & Steele dry concentrati
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