Arizona republican., 1917-06-03

instead of attempting to handle all of it's own output of direct smelting ores and concentrates the Old Dominion management is sharing the reduction work with the more adaptable plant of the International Smelling company in solar as the adaptability of the latter reaches. There is perhaps a good deal being pointed out through this manner of procedure that will find reflection possibly later iu central plants adapted to the needs of the major production of copper districts. Whatever advance may be made toward higher efficiency through such development will be to the credit in much measure fthe Interna- tional Smelter management, which has achieved a great deal in improved prac- tice It's mechanical excellence has been added to continuously by a highly competent and far seeing management. Details have come in for high consider ation and have been overlooked in no essential instance. That all of this is true will be better realized when it Is considered that International was only recently contemplated as q sixteen million pound the month plant, but that it is now turning out upward of twenty million pounds of copper the month.
 The Inspiration
 Inspiration Consolidated Copper com pany stands at the head of the list in Arizona in point of individual produc- tiOn of copper and in the employment of the highest efficiency mining and milling equipment at this time in ser vice. Inspiration in this respect had the advantage of all other producers in the state. because it was able to enjoy the results of their findings through the nf ric equipment, and also to adopt later find inGs and devices, and the good judg- ment exercised in adopting these things and in improving thereon in not a few instances has earned ample reward.
 Inspiration is producing at the rate of 100000 pounds of copper the month. &It is mining 20000 tons of ore the day to get this tonnage of copper In so doing it is extracting a larger tonnage of ore the day than any other mine in Arizona, and a greater tonnag ge than any of the other big low grade copper mines is removing from under ground workings. The steam shove mines alone approach the magniture ot ore extraction attained by Inspiration and among these Utah Copper alone ex- ceeds the inspiration tonnage. To mine as IL Is mining, Inspirati tiOn employs the top efficiency in human and mechan. lcal organization The clock precision l With which it's monster skips and othe, great shaft and station devices auto. matically operate is the wonder of al i observers. Mine equipment is pro. nounced by experts to be the last worf In the successful application of machin. cry to daily duty. There will doubles:
 he later improvements. nut-at this tim,
 Inspiration is at the pinnacle of at tailiment and the management and oD
 eratlve force a unit in endeayor to keeI II so. No opportunity for bettermeut I,
 being passed by
 That which applies to Inspira tior
 mine applies with equal force to In spiration mill, in point of efficiency an, unity of all concerned to the end n l keeping at the top. There is spirite, interest on the part of every shift i,
 maintaining efficiency if possible q bi 1 higher than the previous shift. All ar
 proud Of the equipment they have f
 Work with and prouder of the result
 they are able to get from it. The mi
 ls Worklng well beyond rated capacit,
 ana doing 1t with ease. The last tw
 m April, have now tuned up 10 high ef
 units installed completion beIng mao
 hclency. They represent the final ev
 tension contained in the original plan
 Tor the mill There is room for dthe
 extensions, however, and these will h made as the mine openings are carrie out anu the larger tonnage provide for Ultimately the daily ore extrac ton will be much above the preser
 Efge figure It is merely a matter z tune Tn which to shape up for @reate output. 7'''' '' The excellence of the mill pra ,tjce best told in the figures for 1g16 wbic snow that the final recovery of cor talned copper from ore was 73.71 ne cent as compared with Utah's 5g.34 nf cent, Nevada Consolidated 69 n ne cent, Chino's 63.S4, Rays 6S.37Ier ce, and Miami's 10.24 per cent. Next , Ctah Copper, Inspiration produced Il largest tonnage of copper of any of II porphyries in 1916, with 120 .772 6; pounds won, comparing with I1tab iSi'S5l,s24 pounds. This year Insnir; ton will do better than 140. 900 0I pounds. Inspiration mined 5a53 S, tons or ore last year to get her come and had left 91,7S9,12O tons. To th reserve theer has been some added tb year. and there will be more. Jnsnir.
 ton IS by no means at the end Inf h, l. lipossiplllties in establishing reserve tor mage F1Suring on the basis of tonnas