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<br />r <br />oi <br />k I ~~lf. : e• '1 ' '~ 1 1 <br />. i r.. <br />.. <br />~ <br />~~ <br />~ e , <br />r <br />X~ . <br />.I. <br />A <br /> ' <br /> ~ <br />r <br /> 2 <br /> period of but ten months, dating from September 1, 1901, to July , <br /> 1, 1902, 'the total money employed in this work.is X48,110.31 ~~ <br /> being a:n average monthly-cost oP $4,811.00. Average number oP men ~` <br /> employed, fifty. <br /> There has been but a small production oP ore during the ten <br />>.~C months, the production being practically limited to the ore inci-~ <br /> dental. to the driving oP drifts 'and arranging of scopes. For the <br /> F <br /> period covered, the total production amounts to ~9,1G8.59. In , <br />is` addition to this, ore has been extracted by leasers in the upper ':- <br />;i; workings oP some oP the old mines amounting to about 8,000., <br /> <br />;tc'- raising the total rn•oduct oP the proposition as a whole to about ~ <br />~aYni ~ $~17, 000. <br />~., While the method of treatment employed on these ores at the <br />~:;:` minas has boon pure concentration using Oornish roles, ,jigs and <br /> <br />,, <br />tablos, after long and caroful work with this method, it proving t..r <br />y <br />f,; not entirely satisfactory, the management has turned its attention "{' <br />uc to ,the problem of cyaniding the oros, looking forward to greater ,z <br /> aucoer;s and Berger profits. A aerioa oP experitnenzs nun uo~== •~- ;; <br />~~>+ gently oondua~tad under the direction oP Henry E.Wood and Ootnpany ~I <br />:~;.~• of Denvor, with the highest and moat satisfactory results. BY <br />r< this rre thod it has been a18ar1y domonstratad that tho ores of the <br /> district are amenable to oyanirle and that a high oxtraation can <br />~~~% ho rne.do at• a lovr scat. Testa havo bean made on a large scale at <br />~• the Henry E.Wood experimental plant in Denvor, and at the prosent j <br />i!'- time a sorles oP testa 1s being made at the mill itself on a large . <br /> aealo; up to dato evorything oho~ing up sat•isfaotorily and giving ~ <br />-!! good roreulta. ~'he plan of treattent is the dlreot application of <br />-';1', cyanide solution to the oro as it camas Prom the mines. That is, ' <br />'~'° the ore as it comes Prom the mines, is oruaited to 20 mesh, run i~ <br />~'~ out in the tanks, slimes and sands separabed, and .the solution' ~ '!. <br />~:•; <br />'"'~ pourod on. In bhis way, an extraction hae,baen made as. high as <br /> 8G~ oP the assay value Sn gol,d and silvor, the axLraotion of gold <br />_ .,. <br />