Bisbee daily review., 1914-03-15

Naughton, general manager of the | Calumet Hecla expressed the be- lief that half of the opened territory had been worked out and that the re- maining half probably would not be as rich in copper as that already worked He gave the following fis. ures of the relative richness of the mines. the proportion of copper to the Ion vf rock, explaining that he meant copper recovered"
 Mohawk. IA pounds; Ahmeek, 22: Allouez. l7h; Wolverine 20 to 24; Oehtenniai. IS, Osceola. 15: Calumet cong .omerate. 2S: Tamarack On Cal met conglomerate, 19; Quincy. esti- mated, 16; Isle Royale. l2h; Superior. z2. He could not g.ve an estmat. the Copper Range Consolidated cop per content but said the proportion in the entire district is about 20 pounds of copper 10 the ton Of rock. Asked as to the copper recovered per ton of ore in other fields. Mir. MacNaughton said that the last figures obtained by him were: 62 pounds in Butte. "A in Arizona and in Utah and Arizona porphries 22. in Utah and Arizona porphyries 22. "is there any variation of expense in bringing the ores 10 the surface 9" asked Congressman Switzer. Yes. The difference Is between the amygda- lold and the conglomerate. the latter being 30 to 75 per cent more expens- i've mining"
 averaged in all the Calumet & Hecla mines. 2S pounds. with earlier periods the witness said the recovery in the Calumet conglomerate in 1873 was 9C pounds. Ten ysars ago 1t was 55 pounds.
 The witness explained the differ. once between amygdaloid and con glomerate rock and in general the sys- tenn of mining in vogue in the district. He gave the output of the district to be about 225.0OO,OOO pounds of copper per year. the normal hoist of inc Cal umet & Hecla 20.500 tons per day. The total investment of the Calumet & Hoola Mining Company in plant was given at about $27,O00,O0O.
 How long time elapses between the mining of the rock till it is mar. keted?" asked Chairman Taylor.
 About six weeks. If we used an cleo trolytic process of smelting it would be ten weeks to twelve weeks"
 "Is there ready market always?
 Not always. There virtually is nc market for copper now"
 The witness stated that at present the Calumet & Hecla is mining at g depth of 5000 feet on the vertical, ol si00 at something over mile verti cal. or was before the strike
 MT. MacNaughton explained that tn, mines are not electric lighted because the expense of maintenance owing tC the constant changing of shafts through shifting of the rock. whicl keeps 300 shaftmen on the Calumet S Hecla conglomerate alone repairing shafts. He said that the Calumet Hcela had about 70 miles of drifts SOq. of which are used normally l lHt SttNlOAlo VI SNOP'1 NtAt oNh'' the total mileage would be 70 to i0 miles more.
 The chairman asked if any enginee had ever been complained of and NIT MacNaughton said that he recalle' that since the strike the men at on shaft had complained because a hoist ing engineer was SO interested in dis cussing socialism he was not attend ing to business. He was released.
 MT. MacNaughton went into an ca planation of the contract system c mining, stating that 1t was in it's olC est form based on the cubic fathon six by six feet The committeema made a reference 10 complaints on tn score of false measurement by tn captains. MT. MacNaughton said tha this was due to a difficulty sometime fin the captain and the miner reachin an agreement on the amount Of roc taken out, particularly in the amygdi Ibid when the walls of the stopes ar very irregular. There were many kick and complaints because 1t had to b measured on an average scale and disbursement resulted He explaine that this contract system has been SUI planted largely hy contract based O tonnage.
 This tonnage Is arrived at by weigl ing the rock in the railroad cars which it is delivered by tue shai house. This weight is referred back the number of cars trammed and II tie experience makes it possible to rive at a pretty accurate knoweldf of the weight of rock mined by eae miner.
 MT. Petermann asked if the miner supplies are charged to them und' this system and the answer was NO that even in the old days supplies wei not always charged, though general they were Steel has not been charge np for two or three years.
 "Who Is tue cheaper man Tor ~