Arizona republican., 1899-06-30
Mines and Mining

or q really big produce has put 10 con- ciuGe that he is ready to ret-la from , active management and his OppOrtu- nity to sell at a good valuation is a. hand. l. is somewhat strange that when big mines are Il such demand there is not more demand fer prospects which g.ve promise of be- coming mines. The hazard connected with the development of one prospect may be great but if the price Of one big m-ns were invested il exploiting success. .vely as many good prospac-s as 1t would thoroughly develop thee $ little doubt that more than one goo1 mine would be the result.-Nining Re porter
 When a pTGsDectCr locates claim ..e should take particular care to as ceTiIin, as nearly ls possible. The di- Tecti0n of the strike. that rhe side lines may be made Iara-lei to the vein. I'lc passage of Tle-Yei1 acrCSs the side Ine Of a claim k Disappointing to .he owner Of inc claim and is also fruitful source Of litigation. The likelihood Of making l mistaize of this kind iS Ereacar in q region where ore deposits nccur in q satlimentary formation that les at low angles. as :3t Ltldville Co-0.. and in the : acIz Hiiis of South i5j13tl. where Silver-Iaad and gold ores occur in 0U2rizi.e and Iines.Ona in EelrlY fiat sheets. The ore shoots are usually larger in one direction than in aEcther and 1he larger axis may be presumed to represent the strike O. trend of the ore body and in this di- rfcr.an the claim should have its great est length At least one famous law sui WAS indirectly the outcome of an error Of this kind-tht case of Dugan -Es. 1F7s
 made q discovery CT the =. ds of q hill above an abrupt preciPice. He con- sidored the quaTtZite to be the vein and located his claim in 4ze tiirec. ion nf itS exposure CT oUtcr0p. taking ora- half Of its Widrh on tlla qUartzfte and the other half on the steep slope and ta us at i.s base. Tie ore shoot Iay in this quaI"z,te layer. but it's trend was almost directly across the length Of rha claim. SD that the locator only had 150 feet OF the shoot where It. might have claime,l and held 1.5C0.- Mining and Scientific Press.
 That nuggets grow there is no reaScn to believe. -Ssl the 9o-caII I evidence to that effect is theoretical. When q nugget iS released from tha rock maTriX ia which t was formed. whether quartz. tatc. or whatever #
 
 fn size i)y tle triton Of rocks as it moves along and mingIes with the Ca- trituS on tke surface. Ii has taken ages in most cases for a nugget to move down q hillside from q vein where ii was formed but having reach-d | tl:e =ricl and nlinel.ng with the gravel ard bOUlders Of th.a stream. every freShet wE:s | has volume enough @ move the rocks. gravel and grit causes the nugget 90 be sc0u1Ed q and finally worn smooth. It's sharp corners and edges are ii&Unted and any projections are pounded cut of shane and S0metimrs tUrEed hack upon the main mas. In time the antirp a1t7el1.- ance of tie mass of eo-d is changed from that of T rough mass of irregular sllare. having sharp edges and possi- bly mdny crysta' faces. is bea:an and wCrD Ul--H f becomes q smooth round eei mass Of still irregular shape Tn S my be accomplished without tLa rug get having moved along the bed Of th2 stream at all. tila attrifion being due t3 Passing rocks and gravel car ried onward by the swift current of the mountain stream. Tn q gnlch pro- dUcin@ Eug@eSts Cf gold a.s well aS fine gold. if will be foUrd that tlle gold always grows smoother and lb-tEtS s4N tl t@t i---E :lS 'tl | from its source increaeE s.-Mining and Scientific Press.
 One-half of !le copper production of the Tritsd States was contributed by the m nes of Montana during tho month of May. the total production Of ti.;@ sta beng nearly 22.000 eco pounds. TIe output of inc Lake Su- l periCr mines decreased abor. 3G00 GOO ! during tha same north. wlli,a Ali i zona showed q small increase over the . c9rre=1ordin@ month fn 1S02 The total increass in the output for May was over 2.C00 tens which iS attribu- ! ted to ',lEa largely increase q production ! of the Anac0nda- Tbe total 0J.tlil-f of I copper in the United States since !. 1 ts reported at 1G2. 14S tons. ] against 101.C..5 r1ns for the first five ! months Of 1898. thus showing only T | very Sli-F, incrsasHa- The figures are he'd Ky many t0 COTS: :ttftc q strong argument for firm prices il copper. ItH it claimed that the sUmpticn of cop 1 Der this year has iEcreaSd % ger cent while stocks Of >rct copper. Eo-l l here and in Europe, naya hen great ly depleted. Tn fact all ehc lending copper mining companies are slid to | be practically sod ahead at least un- til September 1.-W-eStern Mining < World.