Weekly journal-miner., 1915-01-13
MINE PRO-
 DUCTION FOR 1914
(From Thursdays Daily.)

The value of the gold, silver, cop per, lead. and zinc produced at mines in Arizona in 1914 decreased over 16 per cent as compared with 1913, ow-t ing principally to the lower price of copper on account of the European war, according to V. (. Heikes, of the U. s. Geological Survey, who es- inmates the output for 1914 at $59,- OOO,OO0, compared with $70,S75,0H for 1913. There was very little de- crease, however, in the output of copper, lead, and zinc, and consider able increases were made in gold and silver.
 The mine yield of gold in Arizona increased from $4,023.911 in 1913 to about $4,57O,OOO in 1914. This in crease of nearly IA per cent was al most entirely in siliceous ores of gold and silver mines. The Tom Reed, Gold Road, Vulture, and Common wealth mines produced more than half the total gold of the State, the remainder coming chiefly from cop per ores. Increases were male at both the Tom Reed and Gold Road mines, and a notable quantity came from the silver ores cyanided at the 1 Commonwealth property. Several new gold mills were built, one at the Goldheld mine in Pinal county and several in Yavapai county.
 Arecord production of silver was made in Arizona in 1914, notwith- standing the reduced market price. The output increased from 3,948,O9l ounces in 1913 to about 4,469,0OO ounces in 1914 The increase of over 13 per cent resulted from the treat ment of more siliceous 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 Com monwealth mill was treating, by the cyanide process, about 300 tons of silver ore day.
 While Arizona still leads in copper production, the output decreased, on account of market conditions, from 407. .o23,402 pounds in 1913 to about 38S,OOO,OOO pounds in 1914, decrease of nearly 20,OO0,O0O pounds, or about , per cent. Although the production at most of the copper plants was less, the Hayden plant, treating Ray concentrate, the Arizona Copper Co.,, Calumet & Arizona and Consolidated l Arizona Co.,, made increased outputs At the Miami mine production was 1 nearly the same as in the former year, although a considerable in crease was made during the first half Of the year, when the mill was concentrating more than 5000 tons day. At the Inspiration mine con struction work continued on the con- ] centration plant, and ore was treated by Notation in the test mill, which has a capacity of 600 tons a day. A smeltihg plant to treat concentrates from this mine and the Miami mine was being constructed by the Inter national Smelling & Refining Col The Ray Consolidated Copper Co., during the first quarter of the year. treated over 100000 tons Of ore and made over 49,OOO,OOO pounds of cop per, but the output was greatly re- duced in the last half of the year. At | Jerome the United Verde was active but produced less than the usual out put of 100000 pounds month. In Yuma county the plant at Swansea was idle. The mines producing low grade disseminated ores, including the Ray Consolidated, Miami, Inspir- ation, Arizona Copper, and Detroit, had total of about 154,0O0,OOO pounds of copper, against 13S,H1, ,4S3 pounds in 1913. At many mines ex- periments were made with both teaching and Notation At the Magma KelvinSultana, and Copper Queen mines concentration plants were com pleted, and at the Arizona Copper the mill was enlarged.
 The output of lead was practically the same as that of 1913 when the mines produced 16,14,772 pounds. Most of the metal came from the mines of the Bisbee district of Co., chise county, especially the Copper Queen and Shattuck. In Mohave county the Tennessee mine was a large producer, and its ore, which contains lead and zinc, was concen- trated and separated at Needles, Cal.
 The mine production of zinc ore was close to that of 1913, when IA 726 tons of concentrates and crude l ore produced 9,428,O67 pounds of spelter chiefly from the Golconda | and Tennessee mines, in Mohave county.