Bisbee daily review., 1911-08-13
aueusT ls e
Greene Cananea

or three shafts have been sunk with disappointing results. l believe that
 all these areas should be tested again with churn drills, this method being
 the best so far used to locate blan-
 ket deposits Of ore.
 i There are no vein deposits of ore
 in the Greene-C -Cananea area, so far as is now known Like other porphyfy deposits those in cananea are simply beds of ore with nothing of conner cial value above or below them. In some places the enrichment is deep per than in others. and at one point
 good ore is being mined HOO feet be-
 low the surface.
 The greater portion Of Greene-Can-
 anea's ore is mined and extracted through tunnels. Electric underground
 haulage is used in all the more import ant mines. During the past two or three years great deal of explora- tory work, an abnormal amount of development and the expense of un-
 watering and retimbering tunnels in
 old mines have been charged against
 the mining of a relsii ey suHtt fhn mage of ore This has AS4 a .1Esel
 to make mining costs appear very
 high. As the case of construction,
 however. this work is now practically completed and the average cost of
 mining. which averaged s2.75 last year, should be reduced to about s2.25 per ton in the near future.
 Iron and Sulphur.
 Greene-Cananea now has an excess Of iron and sulphur in it's ores, and it is beginning to be bothered by the low grade matte problem. This is
 being overcome largely now by the
 treatment of Miami concentrates and later on more siicious ores will be
 mined and smelted The company is in a position to buy and smelt profit ably 8 considerable tonnage of sill
 cioRs custom ores; but very few own CTS Of such deposits are producing on
 the present low price of copper
 Ali it's concentrating porphyry ores run high in iron, consequently concen-
 tration is tow, from five down to two
 and a half into one. The saving of
 values in concentration is excellent,
 however, averaging about 73 per cent.
 The presence of so much iron natur- ally makes the amount of material to be smelted very large. If it were not
 for this fact Greene-Cananea would
 be able to produce it's copper for less than eight cents per pound.
 There is every reason to believe that Greene-Cansnea is making an excel l lent profit on the treatment of Miami concentrates. Not a pound of this ma terial, which averages about 70 per cent copper, goes into either the blast or reyerberatory furnaces. It is first
 dried out and partially roasted in cal ching furnaces and then introduced
 into the air system in such way that 1t is blown directly into the converters through the tuyers, that is, from the bottom up into the molten matte All
 the usual cost Of smelting is thus elinl- mated, and also the expense of fuel and that of handling an immense
 amount of fiue dust.
 Substantially ali Of the men now employed by GTeene-Cananea are Mex | jeans, with a few Indians and Chinese. 1 This labor is fully as efficient, if not more so compared to wages paid, as i American miners. All the company's s
 clerks, bosses and other having to do :, with the direction of affairs are Amer jeans. Living expenses in Cananea
 are lower than they are across the line { in the United States.
 was much more favorably i'm | pressed with conditions at the Greene ! Cananea property than l expected to | be. The management has succeeded i in making the property into a substan- ! tial low cost producer. As it stands now there are dividend possibilities even with copper selling at it's present price. The company's capital stock is | selling in the market for about S1S.- 0G0.000. I think it worth considerably more than this and l would buy tho stock.