Arizona republican., 1915-01-10
ARIZONA STILL LEADS IN COPPER
 PRODUCTION
Increases in Gold and Silver-Dccreases
 in Copper. Lead, and Znz

m copper Lead, and ZlnZ
 The value Of the gold silver copper lead and zinc produced at mines in Arizona in 1914 decreased over l6 per cent as compared with 1913, owing principally to- the low price of cop per on account of the European war. according to V. C. Hcilles. of the L. s. geological survey, who estimates the output for 1914 at $5g.000,0 900 compared with S7O.S75,027 for 1913. There was very little decrease however in the output of copper, lead and zinc and considerable increases were made in gold and silver.
 The min yield of gold in Arizona increased from si,023,9l1 in 1913 to about $4.570.0Q0 in 1914 This increase of nearly II per cent was almost en- tirely in siliceous ores of gold and sil- Yer mines. The Tom Reed. Gold Road Vulturc, and Commonwealth mines produced more than half the total gold of the state, the remainder coming chiefly from copper ores. Increases were made at both the Tom Reed and Gold Road mines, and q notable quan- titN came from the silver ores cyanided at the Commonwealth property. Sev- eral new gold mills were built. one at :he Goldfield mine in Pinal county and several in Yavarai county.
 \ record production of silver was made in Arizona in 1914. notwthstand- ing the reduced market price. The output increased from 3.94S0gl ounces in 1918 to about 4,469.0o0 ounces in 1914. The increase of over 13 per cent re- suited from the treatment of more sili- ceous silver ore. Most of the silver came from copper ores, and most of the remainder from siliceous ores and lead ore. At Pearce, in Cochise county, the Commonwealth mill was treating, by the cyanide process, about 300 tons of silver ore d day.
 While Arizona still leads in copper production, the output decreased, on account of market conditions, from 401, 923,4G2 pounds in 1913 to about 3SS.eo0,000 pounds in 1914, a decrease of nearly 2e.O0O.0o0 pounds. or about , per cent. Although the production at most of the copper plants was less, the Hayden plant. treating Ray con- Centrate the Arizona Copper O., Cal umet X Arizona. and Consolidated Ari- Zona Co. made increased outputs At the Miami mine production Was nearly the same as in the former year, al- though d considerable increase was made during the first half of the year when the mill was concentrating more than 5000 tons d day. At the lnspira tion mine construction work continued on the concentration plant, and ore was treated by fiotation in the test mill which mas capacity of 600 tons day A smelting plant to treat concentrates from this mine and the Miami mine was being constructed by the lnterna- tional Smelling S Refining Co. The Ray Consolidated Copper Co.,, during ths. first three quarters of the year treated over 2.000,000 tons of ore and made over i9000.0G0 pounds Of copper but tho output was greatly reduced ir the last half of the year. At Jerome the United Verde was active but pro- duced less than the usual output of 3.000,. GOO pounds a month. In Yuma county the plant at Swansea was idle The mines producing lowgradc diSscm- mated ores, including the Ray Consoi- dated Miami, Inspiration, Arizona Cop per- and Detroit, had a total of about 154.0o1,00O pounds of copper. against 13S.471,fS3 pounds in 1913. At many mines experiments were made witt both teaching and flotation. At tho Magma, Kelvin -Sultana. and Coppo