Mineral Resources of the United States, Parte1U.S. Government Printing Office, 1912 |
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Página 203
... equipped for a steady output . NOTES ON FOREIGN ORES OF MANGANESE . RUSSIA . The following excerpts from an article by Vice Consul Frederic W. Cauldwell , Batum , Russia , published in the Daily Consular and Trade Reports by the Bureau ...
... equipped for a steady output . NOTES ON FOREIGN ORES OF MANGANESE . RUSSIA . The following excerpts from an article by Vice Consul Frederic W. Cauldwell , Batum , Russia , published in the Daily Consular and Trade Reports by the Bureau ...
Página 253
... equipped as they are with intricate and beauti- fully balanced apparatus for sorting , crushing , sizing , classifying , grinding , concentrating , and amalgamation and cyanidation , and working with high extraction efficiency and ...
... equipped as they are with intricate and beauti- fully balanced apparatus for sorting , crushing , sizing , classifying , grinding , concentrating , and amalgamation and cyanidation , and working with high extraction efficiency and ...
Página 296
... equipped for hoisting with compressed air and the electric haulage system was extended . It is reported by the company that the tonnage of ore developed was much in excess of the quantity extracted . The mines of the company produced ...
... equipped for hoisting with compressed air and the electric haulage system was extended . It is reported by the company that the tonnage of ore developed was much in excess of the quantity extracted . The mines of the company produced ...
Página 298
... equipped for the use of oil instead of coal , and basic lined converters were also introduced . The following table shows the results of operations at the con- centrator for the 15 months ending December 31 , 1911 : Operations of Nevada ...
... equipped for the use of oil instead of coal , and basic lined converters were also introduced . The following table shows the results of operations at the con- centrator for the 15 months ending December 31 , 1911 : Operations of Nevada ...
Página 333
... equipped with 6 Jumbo Scotch hearths , 2 small cir- cular blast furnaces to reduce the gray slag , 2 drossing kettles , and ample bag - house capacity . The new smelter will use lead ore from the Joplin region , making the fourth ...
... equipped with 6 Jumbo Scotch hearths , 2 small cir- cular blast furnaces to reduce the gray slag , 2 drossing kettles , and ample bag - house capacity . The new smelter will use lead ore from the Joplin region , making the fourth ...
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Términos y frases comunes
aggregated Amalgamation amounted Arizona average value base bullion bullion California carbonate centration clay products coal Colorado compared concen concentrating plant concentration mill containing copper-lead Creek crude Crusher cyanide plant decrease deep mines deposits depth district.-The dredges drilling dry or siliceous exports feet deep feet of drifts following table furnaces galena Geological gold and silver Grant County gravel Huntington mill Idaho important increase jigs Lake Superior lead and zinc lead concentrates lead-zinc lessees lode long tons magnetic manganese Mexico Michigan mineral production Missouri Montana Nevada Nye County old tailings operated ounces of gold ounces of silver oxidized pig iron placer mines pounds of copper pounds of lead principal production in 1911 production of gold pyrite recovered refined reported rock shipments shipped to smelters short tons silver mills smelters smelting Socorro County sphalerite sulphide Survey tion tonnage total value U. S. Geol United Utah vertical shaft yielded zinc concentrates
Pasajes populares
Página 213 - I refer you to the Annual Report of the Director of the Mint for the fiscal year ended June 30.
Página 340 - Provided further, That all labor performed and services rendered pursuant to this section shall be under the supervision of an officer of the customs, to be appointed by the Secretary of the Treasury...
Página 339 - On the arrival of the ores at such establishments they shall be sampled according to commercial methods under the supervision of Government officers, who shall be stationed at such establishments and who shall submit the samples thus obtained to a Government assayer, designated by the Secretary of the Treasury, who shall make a proper assay of the sample, and report the result to the proper...
Página 383 - ... bonded warehouses or otherwise. On the arrival of the ores at such establishments they shall be sampled according to commercial methods under the supervision of Government officers, who shall be stationed at such establishments, and who shall submit the samples thus obtained to a Government assayer...
Página 384 - ... methods under the supervision of government officers, who shall be stationed at such establishments, and who shall submit the samples thus obtained to a government assayer, designated by the Secretary of the Treasury, who shall make a proper assay of the sample and report the result to the proper customs officers, and the import entries shall be liquidated thereon, except in case of ores that shall be removed to a bonded warehouse to be refined for exportation as provided by law. And the Secretary...
Página 172 - Report on the geology and mineral resources of the central mineral region of Texas: Second Ann.
Página 353 - States as shown by the report of the Bureau of Statistics of the Department of Commerce and Labor...
Página 148 - The next two pages, the southeast quarter of the northeast quarter and the southwest quarter of the northeast quarter, and so on through the other quarters of the section.
Página 397 - SCHRADER, FC, Mineral deposits of the Cerbat Range, Black Mountains, and Grand Wash Cliffs, Mohave County, Ariz.: Bull.
Página 396 - The following publications, except those to which a price is affixed, can be obtained free by applying to the Director...