Mohave County miner., 1913-06-07
New Precipitating
 Plant to be Built.

being advertised by the Copper Queen for the erection of new precipitation plant. The plant will >upplant that now located at the Czar shaft. The present plant will be torn down to make room for the operations directly associated with the mining division. in the extensive improvements and alter ations Tn Naco road canyon, on which large force has been employed for some weeks. The new precipitating plant will be considerably larger than that now in service.
 In the call for bids it is specified that about 5000 cubic yards of grading will be required. Twelve wooden tanks will be constructed while about 35,O00 feet of timber will be utilized in the building of fumes, tracks, etc. All materials are to be furnished by the company. The old preciptating plant, which was erected several years ago, has resulted in the saving of many thousands of tons of copper to the company each year. The water from some of the shafts is so impreg- hated with copper that, by depositing tin cans, scrap iron and other metals in the tanks, the copper metal is de- posted and from the resulting mass an average assay of something like l2 per cent in copper is obtained. Hundreds of dollars worth of old scrap metal has been used by the precipitating plant, Recently, when the city had gen. eral cleanup, about dozen tons of old scrap metal was collected and thls was purchased by the Copper Queen at SS per ton.
 The mining industry of the Warren district will be seen in actual opera, tion all over the world. John T. Coyle and Arnold T. Smith, of a notion pie ture company, are here and are mak- ing arrangements to take moving pie lures of every phase of the work. Special Illuminating apparatus has been secured so that the pictures may be taken deep down in the mines and every phase of the production of cop- per, from its first being dug from the earth to it's smelling at Douglas, will be shown.
 An experienced mining engineer here has made the statement that in recent years and at the present time probably half of the output of the dis trict comes from discoveries made at odd places in the course of the con ducting of the general system of de- yelopment. In other words, half of the output of l3O, ,OOO,OOO pounds of cop per, the annual production of the dis. trict, is clean pickup in so far as the estimated tonnage possessed by the mines at the beginning of each year IS concerned. This statement gives an insight into the tremendous wealth of the underground possessions of the Warren district and the constant gain that is being made to these with less effort and larger results than is prob ably recorded in the history of any other camp. Known ore bodies are located and blocked out to the extent of enabling the obtaining of accurate tonnage figures that show great activi- ty for camp for many years to come.
 By reason of the finds being made almost continually of lesser ore bodies that are removed in whole or in part to make way for the main development these blocked out ore bodies are with every days life given additional life in the proposition that the chance find relieves the main body from produc- tion to fill the daily requirements of the smelter. Although many of these finds are spoken of as chance finds. this is true only in part, as there is probably no district in the country that has been as thoroughly and ac. curately gone over with a view to de. finately locating ore bodies. The en- tire net work of tunnels is all care fully mapped out and affords every facility for expeditions movement.
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 Take Plenty of Time fo Eat