The oasis., 1898-12-10

To show how appropriate is the fol- lowing article and widely applicable, 1t Is reproduced from an Australian paper of recent date.
 Writing from Nogales, Arizona, to the Mining and Scientific Press On the above subject, MT. Chas. Taylor, who has had a wide aud varied ex- perience, thus details certain of its incidents Tor general benefit. Unfor- tunately, mining and mine manage ment is frequently carried on quite as peculiarly in Australian as in Calfor- mia. The business of trying to make an ore it process instead of install ling a process to suiJ the ore Is as common on this as on that sIde of the Pacific, and hence MT. Taylor's ex- perience should prove as profitable reading on the one continent as on the other He says.
 "Some twelve years ago l was sent for to take charge of large c0ncen- trating mill in Santa Barbara, Chi huahua, Mexico. The manager stated that the ore ran D per cent lead, l5 ounces silver, average. The mill not being completed when 1 arrived, went up to the mine where there was an assay outfit. stayed there ten days, samplad the ore on the dumps and ,500 cars as they were run out of the mine Result, per cent lead, 3 ounces silver. On the eleventh day took the stage for the railroad. The mill was started up; the result l leave to the imagination.
 some ten years ago l was sent to start up a big concentrating mill, l will not say where, as l am now get ting too close tOhome to enter into | particulars. l found steam stamp of POO tons capacity, hydraulic sizers, 1 forty figs, sand grinders for the jig | tailiugs, and twelve Frue vanners. ] found the water for the siZers came ! from little stand pipe which sup piled water for everything else in the mill found the ore copper glance, or sulphide. One blow of that stamp would reduce piece of the metal to such a fneness that 80 per cent of it would pass 100 mesh screen. The next day 1 went to the mines, twelve miles bJ a narrow gauge railroad. l | found many thousand feet of work. 1 | found perhaps 100 tons of ore on the various dumps; and, with liberal es innate, 100 tons more in sight. took the train for home the next day. The mill started up and ran for twelve hours. There is no mill or railroad there now.
 "Some nine years ago 1 found a sample of ore in the express office, sent me by responsible firm oper- ating in Sonora, Mexico, asking my advice in regard to the proper way to work ores of that character l re- commended concentration aud ship ment of the product to shelter; and specified what I considered the proper machinery for the purpose. was asked to buy and install the plant, which did, and in sixteen days run used up every pound of ore they had, or ever have had.
 "Six years ago, more or less, 1 was asked to sample mine, and advise ln regard to machinery to work same. 1 1 did sU, and advised live stamps, plate and vAnners. The owner stated that his capital was too small, and wanted something cheaper installed. 1 then advised some kind of centrifugal crusher, aud a Huntington mill. These were bought and put in place. started up the mill with the result of 52 per cen of values in gold bullion, and concentrates S26l per ton, Sl.20 tailings. About a year afterwards l received letter from the owner, stating that his ore had fallen of ln value. that they saved nothing except on the plates, that the va1ners were failure, and to come down at once. did so, and found the mill run en- tirely by Mexican labor, except the amaigamator. 1 found the vanners transformed into pumping tables, and they bumped seven different ways at once The head pulley pushed down, la, ,,n hoaA rpilar haurinnc pnf