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' S~puggler No.3. <br /> ,.; 'GEOLOGY.- , <br /> The geolagical.eurSey by E. J, Spurr <br />5 <br /> c <br />vere this die- <br /> triot and shows an existing sedimentary aeries extending <br /> <br />00 Pram the Cambrlan.ta the Jura-Tries. The Pormation'" ' <br /> <br />ty, dips-..about 80.degreea from the horizontal and strike <br /> of the strata would,be northeast and southwest. . <br /> ' ORE OCCURANCE. <br /> The are ocoure ae a contact replacement between the <br />e, blue 'end dolomite limee and coneieta of eulpHides of <br /> lead, iron and zinc in a lime gangue which.aleo often <br /> carriee eome barite or heavy'epar. The are streak <br /> ,varies fram ten to twenty feet in thickness and the` <br /> contact, which io net productive at all points hoe been <br /> opened far .a dietanae of 2b00 feet verticaliq and' fbr <br /> several milee in length. . <br />#~ I All ore which rand above 16 er cent <br />P peed and 3 <br /> <br />3 ounces <br /> <br />~ in silver ie shipped direst to the smelter. The nnalyeie <br />3r of such an ore would be a <br />ppraximataly ae'fallaw <br />i 3' <br /> s <br />ounces <br /> silver, lb°~ load, 10~ eilioia, 3;; iran, 20~ lime, 62 zinc, <br /> 2;~ barium sulphate and 2A sulphur, All are below this ie <br /> ,.milled, the general run of mill dirt running about b'~ lead. <br />id METHODS~OF MINING AND TIb1BERING, <br /> The Around in drilled entirely by maahinee, put through <br /> beard ohutee, trammed to heisting ehcift, bath by 2iand'and <br /> electric-motors, and hainted an cage e. <br /> The hanging well of the era is a swelling limo shale and <br /> it .is almost impassible to hold 3t with timbers. Ths Poot <br /> wall of the'are is dolomite and stands very well, in moat <br />' oases without timbers. The eyatom of timbering used is 12" <br /> ~x 12" square sets'roinforoed by filled aribe. It ie the' <br /> ehnlo streak on the hanging which hoe been burning'f or so <br /> tunny years in.tho prapsrtyr The fire ie aotive in abput <br /> 'ton different parts of. ,the mine at present, but by bulk <br /> heading those parts off fram the rest of the~mino with <br /> ooncrete bulk heads and ,by operating numerous euotlon fans <br /> throughout the worlcinge the fumes ar'hont from the fire <br />I <br /> ~ P..ivoe little inoonvonionoe. <br />I <br /> j DEVELOPMENT. <br /> The mine has many thousand feat of waMcinRe with numerous <br />;, <br />