Show MINING MATTERS L FINDING COIl WITH XFIAYO they Alia 1Ijjj ITrKnc of Sites top r Bad Id Slaking assays of oro supposed to contain precious metaL by mean of the X ray In tho latent phase of the development of tho wonderful device discovered fly Professor Ilnenlgen Not only has tills inset I demonstrated to be NHwIUlr but U I Is I aim practical which Ie I of n great deal more Import I neo This illKcuvcry opens t1A lAdy to rich gold Hints In place where cold vtotild not under ordinary card t car-d brsupiioeitl to exist Ur H Z Ilcnncowyof Nhpn Cnllfoi non who U I will knonii as n tclenllfle IlIrelIlnlor Is I the discoverer of that IInlllIo scheme Just referred lo itches hose nt work on It for n long lime still all rho make scientific research n must but ho Is now reality to glvo he remits of his iltocovcrlen 10 the ivorid flint all mny profit by them Dr Hpunesney makes nn Attempt to krri lib methods secret lout lit I willing hat they U limited whom they da ho most good I Hold quarts wait the rock wllli nbleh In flint mil tiny success In making his experiments he pivoted In his results At ono limn be would 1m I umwsful anti At Another ho would I very far off Different exposure tecmrd lo hove very little to do with It for with tin same piece of nro on the RIIIII kind of lilies HIP result varlet to the widest ilegrrc The line lor then liejmii making records at tho exert nmdlllon of his little during thin inherent experiments H so hnpjipnpil that ho made nn pxpflmire when file tubpi was very low nnd WAS surprised surpris-ed 1 to get n gaud Indication of ore Inn In-n 1 piece of quarts A Illlle longer PX poiuri and Hip result was better And an It went on unlll HIP proper time of cxpoeuro was found I In land demon rat1 Ont a low lube or one that I tars not produce mnnjr XrnYl was Ibo beet for Hip purpose U line lone been known Hint n tulio of title kind always give the RlnngpKt confronts but It Is iindcslrnble for surgical work on nppnunt of Iho time rp > iilred to make the pxjinsiirv In maklmr assays Ibis In I of course a mailer of no tin pe > rtnnco Why HIP low tulle should produce better result than HIP high Who III I easily understood bynnybodVArnualnt ell nllh photography A dim light In a room will mAke stronger shadow In n photograph than n strong ono In a given length of limp In the Case of HIP X ray the high little create n mdlnneo lint bus n tendency to pas through everything And no It happen Hint br HIP limp A certain part of Iho plain Is I exposed ennusli tbo other ports urn overexpose And cease fluently show nn contrast life results to I very much Iho same al It Ibo plate bad lieen forged After Dr Ilennesupr bad mrliM per fection In mnklng Xrny picture of piM on be tried different kinds nf other ore and HIP result vtero most sunirlslng Tlie tllrferenco between gold and liter Is nf the widen dp irripllon and ropier and lend aro very different from either fold looks like font markings on n window INIIIO while Klher looks like liny speck DltTiTent ores In life same piece ot work am all plainly distinguishable And not only does tho Xray ihmr Hint them Is co < lm In Arcrlflln1nxkilullr iw dfipnufmalM how much I rU the metal hero Is I Dr Hennessey line lifted this And found that It U t qulln reliable Orlnlnly enoimh in tell whether Ibo ore Is worth making II series of test of The most surprslng discovery mode t7 Dr llenncmer though he l the Not that the > rny will show gold In a rock that hull no outwnrd sign of in exist Price Ptiveral piece found In Iho Naps hills of such character that no miner would look At them for mnro than ft moment before throning them nsldn AI worthless under flan Xrnr proved to contain n layer of thin gold small In oiinnlllr but nnverlhrlMii cold < < Tlin Aeroniinnlng drawings show the outside out-side views of bits nf quartz Obey of file piece nf quarts examined did not choir Any alms of gold on Ibo outside even when put under a strong magnifying magni-fying glass Of course the great ndrnntneo of Iho Xray In Asiavln la I Hi chApnesx ix aniliiAllons of thirty small piece run be inndi on nun pInto at a cast of abut n at tho most The same work done In the tiitiAl meaner would cost at leant 510 It will how bo nn enur mat ter for miner to fake B number of specimens hero hem pill Hirflimh the Xray process nml determine whether they contain gold or not Oftentimes 1117e 1lntr i rn minor will throw tawny good specimens speci-mens because acre Are no outward In dication of gold To get those pieces tented At ft nnleco Is J more than moat miner rim afford Tim lime tins now crone when HIP work can most fleshly be done by Xray operator for Aleut 10 rents Apiece In Inrgo loll Ills really menus n revolution In prospect Ing and the ground of dm state III I mire to lie moro thoroughly worked than ever before |