The copper era., 1903-01-22
ARIZONA COPPER
 MINES IN 1902.
No Great Increase Promised for
 the Present Year.
BY PROFESSOR JANrs DOUGLAS.

BY PROFESSOR JANEs DOUGLAS.
 From the En yineering and Mining Journal.
 The record for Arizona for 1903 does
 not promise any great increase in out
 put.
 As to new works: In November. zs.s2, the works cf the Calumet & Ari- zona company at Douglas, whose mines are adjacent to those Of the Copper Queen at Bisbee, were started with an output of from 20 to 9 tons a day, a production which will be in creased during 1903. The shannon company in the Clifton district, which
 closed its smelters after a short cam paign in 1902, in order to supplement its smelting works by cOncentratOr of 800 tons capacity daily, will resume operations before the close Of 1903, and should make an output Of at least 300 tons of copper q month"; The Val Verde company on the Agua Fria, in avapai county, is running a furnace and making copper matte rich in the precious metals. And the Black Dia- mond company, operating in the Ora goon mountains, expects to star: lO0- ton furnace early in 1903.
 The older companies are showing neither symptoms of decay nor of hys- terical activity. The new Copper | Queen works at Douglas should start during the summer of 1903, and are being designed to take custom ores of copper, gold and silver, as well as q slightly larger tonnage from the com pany's own mines. They are being supplied with large furnaces and good engines, and planned so as to handle large quantities of fuel and ore by machinery. The removal of the works to a distance of 2S miles from the mines is in order to secure space for an enlarged and better designed shelter, water for high-class con- densing engines, nearer proximity to fuel, and location more central to the | mines of the Phelps Dodge properties, | and for the purchase of ore from Mex | ico and the Southwest. Though there l
 
 for lead, it is the intention of the | company to enrich the copper bullion | with gold and silver. The completion | Of the Fl PasO & Southwestern rail | road. and the penetration of the Naco- zari railroad into Sonora from Douglas, makes that growing town a favorable | center for metallurgical works, which l may hope to secure ores from Mexico, | and from the reOpened mines of Tomb stone. These are being revived by | the Development Company of America | and have been reached by a branch of l the Fl Paso X Southwestern railroad. |
 The prospects of Globe are better. l Recent exploration in depth in the | mines of the old Domion and the | United Globe companies reveal sul- | phides in quantity of a grade that | promises to give life to the mines. and | it is hoped, better smelling mixture. | But the output for 1903 will probably | not exceed that for 1902.
 The output of the United Verde mines should be in excess. unless the | fire breaks out afrcsh, or some other misfortune curtails operations.
 Neither ot the large companies in 1 the Clifton district-the Arizona CT the Detroit company-is enlarginZ its plant, or will show an increase over the production of 1902. They are | both aiming rather at increased etiici | ency in operation and lower cost of | production than at making more cop | per, assured as they are, of the long 1 life of their mines, and believing in | the future value of the metal. The l most promising features Of the Bisbee l group Of mines is the discovery of ! profitable sulphide ore bodies in the | deeper limestones, both in the prop erty of the Copper Queen and tn Calu- met & Arizona companies, and the ex- tension of the ore-bodies over large | area, bat as they dip southward they 1 occur unfortunately at great depths.
 "The ERA is officially informed that the out ] put of the shannon company. when il resumes 1.a-