Daily Arizona silver belt., 1910-02-27
GREAT PROGRESS BEING MADE
 AT MIAMI Nearly 1000 Feet Driven During First Week
 of February BUILDING DELAYED BY SLOW MATERIAL Over Eight Hundred Men Employed at Wonderful
 Copper Deposit

At the mine of the Miami Copper com pany force of over 800 men is being employed in general mining, surface and construction work. This is probably the maximum number of men that will be employed by the Miami Copper company during its present period of construction work.
 During the third week in February S2S feet of driving was completed in the drifts and raises, by means of which the large low grade ore body is being block ed out. Practically all of the work at present is being done on and above the 420-foot level.
 Within the past week, shaft No. has been sunk twenty-one feet further. About 10S feet more of sinking will be done to bottom the shaft at a depth of 675 feet. On the 570-foot level a station will be cut, and when production is be- gun, the ore cars will be loaded at that point. Shaft No. has thus far passed through nothing but Gila conglomerate, and as this shaft is located 700 feet east of the main ore body, it is not expected that it will pass into mineral ized schist, unless, of course, new ore body is discovered, which is not con sidered likely.
 On the 370-fOot level, the drift being driven westward into the Captain claim, where the three churn drills are now prospecting, is advancing rapidly. So well organized and swift is the Miami Copper company's system of under ground work that it is possible to ex- plore with drifts the ground under the drill locations almost as soon as the sinking of the various drill locations is completed In this way, the general information obtained by the drill work is quickly supported or modified by the drifting underground.
 The concrete foundations for con centrator with daily capacity of 2,000 tons of ore are completed, but the erect ing of the steel framework to support the corrugated iron side walls is being | delayed by the fact that>a car of nee essary materials has gone astray. The grading for the foundations of three additional units is practically done. For the present, the building of the concen- trator and the equipment will not be | constructed to include these three units, | but the foundations for the additional units will be put in, so that the daily | capacity of the concentrator may, at | any time desired, be quickly increased to 5000 tons.
 The grading for the tramway to con- meet the power house and railroad on Miami Flat with the mine on top of the hill is nearing completion, and several | hundred feet of narrow gauge track | n, In; hn ;np for the foundation of the new hoisting plant at shaft No. 4 is almost finished. A geared hoisting engine, operated by relocated compressed air, will be in- stalled there. The new two-story gen eral office building now under construc- ton a short distance east of the off cials mess house will probably not be ready for occupation before April 1st. The construction of the main power house on Miami Flat is progressing rap idly. Three 600-horsepower boilers are already on the ground ready for in stallation, and the engines are ready for shipment to the mine. The boilers are equipped with Green fuel economizers and superheaters, and in connection with them a concrete stack 300 feet | high will be erected. Other equipment for the power house will consist of two | 1000 k. W. generators and one 4000- cubic-foot compressor. The generators will furnish power for the concentrating mill; for the tramming on the various levels; for the underground pumps, and for lighting both the surface of the property and the main levels of the mine.
 J. Parke Charming, consulting engin- ger and vice president of the Miami Copper company, is spending couple of weeks in Globe. The operations at the mine are in charge of General Man ager B. Britton Gottsberger and Super i intendent of Mines N. o. Lawton. Soc tho naw oficas for ront on ond