Gold and Silver: Comprising an Economic History of Mining in the United States, the Geographical and Geological Occurrence of the Precious Metals, with Their Mineralogical Associations, History and Description of Methods of Mining and Extraction of Values, and a Detailed Discussion of the Production of Gold and Silver in the World and the United StatesJ. Wiley & Sons, 1908 - 727 strani |
Iz vsebine knjige
Zadetki 1–5 od 74
Stran 26
... close of the early history and the opening up of a new chapter of recent history . Further , the events will be given in chronological order rather than by localities or states , owing to the more or less interrelated occurrence of ...
... close of the early history and the opening up of a new chapter of recent history . Further , the events will be given in chronological order rather than by localities or states , owing to the more or less interrelated occurrence of ...
Stran 30
... close to the Arizona line and supposed to have been not far from Oro Blanco . Records left by Father Sedelmair , who visited the place in 1750 , show that gold mining was being carried on to a limited extent . Father Anga established a ...
... close to the Arizona line and supposed to have been not far from Oro Blanco . Records left by Father Sedelmair , who visited the place in 1750 , show that gold mining was being carried on to a limited extent . Father Anga established a ...
Stran 64
... close and intelligent management . A considerable number of properties are at least worthy of investi- gation , and to the best of our belief such investigation will disclose remunerative working opportunities , and will ultimately lead ...
... close and intelligent management . A considerable number of properties are at least worthy of investi- gation , and to the best of our belief such investigation will disclose remunerative working opportunities , and will ultimately lead ...
Stran 68
... close to the Elkton mine . The Mount Pisgah excitement occurred in April , 1894 - rich placer ground having been reported as found there . It has been called the " Mount Pisgah fiasco a horde of deluded prospectors were drawn thither by ...
... close to the Elkton mine . The Mount Pisgah excitement occurred in April , 1894 - rich placer ground having been reported as found there . It has been called the " Mount Pisgah fiasco a horde of deluded prospectors were drawn thither by ...
Stran 94
... close to the surface nevertheless the Spaniards passed by them for three centuries apparently without suspecting their presence . " The principal gold - bearing counties are : Grant , Doña Aña , Lincoln and Socorro , besides both gold ...
... close to the surface nevertheless the Spaniards passed by them for three centuries apparently without suspecting their presence . " The principal gold - bearing counties are : Grant , Doña Aña , Lincoln and Socorro , besides both gold ...
Druge izdaje - Prikaži vse
Pogosti izrazi in povedi
Alaska amalgamation andesite argentiferous assay auriferous average bed-rock blende bornite calcite California Carolina cent chalcopyrite chloride chlorination Colorado Comstock lode concentration considerable copper country-rock County Cripple Creek cyanide cyanide process Deep Mines deposits depth diorite discovered discovery district dollars drift employed extraction feet free-gold furnace galena gangue gneiss gold and silver gold production Gold-bearing granite gravel gray copper Gulch Hill hydraulic Ibid Idaho inches iron Jour lead limestone located mercury method Mexico mill Mineral Industry Mineral Resources Mines and Minerals Montana Mountain Nevada North occur operations ore-bodies ounces output oxide placer mines placers porphyry precious metals Press probably production of gold pyrite pyrrhotite quantities quartz quartz-veins quartzites Rept rhyolite River rocks schists shaft siliceous silver production Silver-bearing slate sluices smelting solution South stamps stope sulphides sulphurets surface TABLE tellurides tellurium tetrahedrite timber tion tons Total tunnel Utah yield zinc