Weekly journal-miner., 1910-01-19
ARIZONA CENTRAL
 NOW IN SULPHIDES
Efforts, Concentrated in Sinking Shaft On Property in Black Hills, About
 To Bear Results
Erom Thursdays DailyO

I the last development shown, the grade has also changed to a coarser makeup in the bottom, with the per centage of lime very much heavier also.
 This is briefly and without exagger- ation the status of this splendid prop erty at the present time, and was seen by a representative of the Jour nal-Miner last Sunday, who was on the ground.
 During the two and one-half years this property has been under develop ment by the present management, practical work and energetic effort has been the watchword, and no bet ter reflection of the capability of the service rendered can be men tioned than through what has been accomplished.
 Ordinarily the encountering of such ore bodies as shown in the Shylock shaft in its progress toward depth would have impeded that work, but the goal was set and the determina tion to reach still greater depth than that shown at the present time will be carried out.
 In support of this judgment there are many examples of successfully operated mines to look to in any section of the mining field of this county or territory, that have fol lowed out this line of operation.
 An examination of the zone in which the interests of the Arizona Central Copper company are located will reveal an interesting condition, as to surface showings, which are without a counterpart in the terri tory. On their twenty locations, evi- dences are seen on the surface that are simply astounding of the mineral ization of that field. For 1000 feet in breadth and for over 1000 feet in length on their claims, five large dykes run with the formation north and south, and the intervening ground is practically carpeted with mineral izatiOn and a net work of veins that carry any character of ore from a bornite of copper to an iron oxide. On the center location of this vast system iswhere the Shylock is located and where the splendid demonstrating work is centered. In this big field, in past years, many prospect holes wer sunk, and from the extreme north ern location to the south end lines, one is identical with the other in it's mineral makeup, and without regard to location as to the dykes that were cut into.
 To expedite the work of develop ment the company has installed with in the past three months, an entirely new equipment of machinery, substi- tuting the electrical for the gasoline method of operating, which is giv- ing most satisfactory results in reach ing depth.
 
 air-drill is doing excellent work. The uniform current furnished the electric hoist by the Arizona Power company cuts delivery from the deepest work ings to the surface in less than half the time formerly employed.
 One of the best evidences of the project insofar as practical mining is to be considered, is the absence at the camp of anything whatever that borders on the lines of luxury. While the houses are substantial and com modious, the fringe that so many camps are cursed with, is at the Ari- zona Central not seen, and whatever money is available goes into the ground on the downright proposition of mining on practical and earnest lines. The question of machinery to treat the product, of which there is an abundance available, will be taken up later. In short, this is an enter prise that comments itself for eco nomical management and practical mining knowledge.
 J. B. Cleveland, the general man. ager of the company owning and operating this attractive proposition, which bears an enviable name in To- cal business circles, resides at the mine. With him, as foreman, is Mike Enright, one of the most capable miners in the territory.