Silver and Gold: an Account of the Mining and Metallurgical Industry of the United States: With Reference Chiefly to the Precious MetalsJ.B. Ford and Company, 1873 - 566 pages |
From inside the book
Results 1-5 of 93
Page 43
... shaft . This process is repeated until the holes have been " used up , " and the shaft is down to the bottom of the borings . If additional depth is desired the machines are set at work again , and a new set of deep borings is made ...
... shaft . This process is repeated until the holes have been " used up , " and the shaft is down to the bottom of the borings . If additional depth is desired the machines are set at work again , and a new set of deep borings is made ...
Page 62
... shaft is sunk and the lower level opened . The mill , situated a short distance below the mouth of the tunnel , is provided with Stanford's self - feeding apparatus , requiring only one man to attend to the fifteen stamps . No pans are ...
... shaft is sunk and the lower level opened . The mill , situated a short distance below the mouth of the tunnel , is provided with Stanford's self - feeding apparatus , requiring only one man to attend to the fifteen stamps . No pans are ...
Page 72
... Shaft claims at San Andreas , Calaveras County . Shaft claims at San Andreas , Calaveras County . Tunnel. Hedrick's claim . Inches of water used in hydraulic washing . Cost of water ... Fall of the water , ( head ) . Supply of water ...
... Shaft claims at San Andreas , Calaveras County . Shaft claims at San Andreas , Calaveras County . Tunnel. Hedrick's claim . Inches of water used in hydraulic washing . Cost of water ... Fall of the water , ( head ) . Supply of water ...
Page 73
... shaft ..... Height of drift on an average .. Area of ground drifted upon Length of ground unworked on chaunel .. Average of cement gravel extracted per day . Quantity of refuse ( boulders ) left in the drift . Quantity washed in sluices ...
... shaft ..... Height of drift on an average .. Area of ground drifted upon Length of ground unworked on chaunel .. Average of cement gravel extracted per day . Quantity of refuse ( boulders ) left in the drift . Quantity washed in sluices ...
Page 76
... shaft to a depth of 600 feet , though no level has been opened below 500 feet . They have two shafts 100 feet apart ; both are sunk on the vein , which pitches east at an angle of 76 ° . Their mill cost $ 30,000 , has thirty stamps ...
... shaft to a depth of 600 feet , though no level has been opened below 500 feet . They have two shafts 100 feet apart ; both are sunk on the vein , which pitches east at an angle of 76 ° . Their mill cost $ 30,000 , has thirty stamps ...
Other editions - View all
Common terms and phrases
50 feet amalgam amount antimony arrastra assay average Bannack base bullion bed-rock bullion Calaveras County California Caņon carbonate cent chemical claim coal commenced company's contains copper cost County course Creek Cupellation December deposits depth developed discovery district drift drill east El Dorado County engine erected Eureka expense extracted feet deep feet in length feet long feet wide furnace galena gangue gold Gold Hill gravel ground Gulch Hill hundred hydraulic inches incline iron labor lead ledge limestone located lode metal metallurgy miles mill miners Mining Company months nearly Nevada opened operations ounces owners placer mines pounds present Professor prospecting quantity quartz quartzite rich River rock San Francisco silver slag slate smelting smelting-works stamps stopes sulphurets sunk supply surface Table Mountain tailings thick tion tons Total tunnel Tuolumne County tuyeres Valley vein width yield
Popular passages
Page 455 - States governing their possessory title, shall have the exclusive right of possession and enjoyment of all the surface included within the lines of their locations, and of all veins, lodes, and ledges throughout their entire depth, the top or apex of which lies inside of such surface lines extended downward vertically, although such veins, lodes, or ledges may so far depart from a perpendicular in their course downward as to extend outside the vertical side lines of such surface locations.
Page 454 - ... no location of a mining claim shall be made until the discovery of the vein or lode within the limits of the claim located.
Page 454 - No claim shall extend more than three hundred feet on each side of the middle of the vein at the surface, nor shall any claim be limited by any mining regulation to less than twenty-five feet on each side of the middle of the vein at the surface, except where adverse rights existing on the tenth day of May, eighteen hundred and seventytwo, render such limitation necessary.
Page 455 - May, eighteen hundred and seventy-two, and until a patent has been issued therefor, not less than one hundred dollars' worth of labor shall be performed or improvements made during each year. On all claims located prior to the tenth day of May, eighteen hundred and seventy-two, ten dollars...
Page 456 - Surveyor-General that five hundred dollars' worth of labor has been expended or improvements made upon the claim by himself or grantors; that the plat is correct, with such further description by such reference to natural objects or permanent monuments as shall identify the claim, and furnish an accurate description, to be incorporated in the patent. At the expiration of the sixty days of publication the claimant shall file his affidavit, showing that the plat and notice have been posted in a conspicuous...
Page 458 - An act granting the right of way to ditch and canal owners over the public lands, and for other purposes...
Page 457 - ... separate and different portions of the claim, each party may pay for his portion of the claim, with the proper fees, and file the certificate and description by the...
Page 458 - ... which does not include an application for the vein or lode claim shall be construed as a conclusive declaration that the claimant of the...
Page 456 - If no adverse claim shall have been filed with the register and the receiver of the proper land office at the expiration of the sixty days of publication, it shall be assumed that the applicant is entitled to a patent...
Page 454 - All valuable mineral deposits in lands belonging to the United States, both surveyed and unsurveyed, are hereby declared to be free and open to exploration and purchase...