Economic Geology: Or, Geology in Its Relations to the Arts and ManufacturesW. Blackwood and sons, 1874 - 336 páginas |
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Resultados 1-5 de 72
Página xi
... Prepared Peat - Fuels . Lignites and Brown - Coals . Bituminous Coals - Varieties of . Anthracites or Non - bituminous Coals . Petroleum , Crude Oils , Coal - Gas , & c . Artificial or Prepared Fuels . 2. LIGHT - PRODUCERS , 169 Gas and ...
... Prepared Peat - Fuels . Lignites and Brown - Coals . Bituminous Coals - Varieties of . Anthracites or Non - bituminous Coals . Petroleum , Crude Oils , Coal - Gas , & c . Artificial or Prepared Fuels . 2. LIGHT - PRODUCERS , 169 Gas and ...
Página xii
... ( prepared ) Emery Wheels . 3. CRUSHING AND PULPING Wheels , Sandstones and Grits . Quartzites , Granites , Lavas . 4 ... PREPARATIONS , 208 Fire - Clay and Fire - Clay Manufactures . Infusorial Earths and Clay Admixtures . Graphite and ...
... ( prepared ) Emery Wheels . 3. CRUSHING AND PULPING Wheels , Sandstones and Grits . Quartzites , Granites , Lavas . 4 ... PREPARATIONS , 208 Fire - Clay and Fire - Clay Manufactures . Infusorial Earths and Clay Admixtures . Graphite and ...
Página xiii
... prepared . XV . MINERAL AND THERMAL SPRINGS , . THEIR NATURE , ORIGIN , AND CLASSIFICATION , Indifferent Springs . Sulphate of Zinc , Goslarite , White " " 236 237 240 240 Earthy 99 Sulphur 99 Saline " " Alkaline 99 Purgative 99 ...
... prepared . XV . MINERAL AND THERMAL SPRINGS , . THEIR NATURE , ORIGIN , AND CLASSIFICATION , Indifferent Springs . Sulphate of Zinc , Goslarite , White " " 236 237 240 240 Earthy 99 Sulphur 99 Saline " " Alkaline 99 Purgative 99 ...
Página 5
... prepared to deal with these unless he is in some measure acquainted with the general principles of geology . Besides , new substances are yearly being utilised , and it is the duty of the mining engineer to keep pace with this progress ...
... prepared to deal with these unless he is in some measure acquainted with the general principles of geology . Besides , new substances are yearly being utilised , and it is the duty of the mining engineer to keep pace with this progress ...
Página 67
... preparation of sandstones for ashlar fronts ; for while polishing will bring out the beauty of one variety , vertical droving may be more suitable for a second , and parallel broaching or pearling may mask the grain or spot- tings of a ...
... preparation of sandstones for ashlar fronts ; for while polishing will bring out the beauty of one variety , vertical droving may be more suitable for a second , and parallel broaching or pearling may mask the grain or spot- tings of a ...
Outras edições - Ver tudo
Economic Geology: Or, Geology in Its Relations to the Arts and Manufactures David Page Visualização integral - 1874 |
Economic Geology: Or, Geology in Its Relations to the Arts and Manufactures David Page Visualização integral - 1874 |
Economic Geology: Or, Geology in Its Relations to the Arts and Manufactures David Page Visualização integral - 1874 |
Palavras e frases frequentes
abundant admixture agricultural alumina amount antimony arsenic artificial arts and manufactures basalts beds bismuth bituminous blocks borax Britain calcareous carbonate carbonic acid Carboniferous cements chalk chemical chiefly chloride clay coal colour compact composition consists containing copper crust crystalline crystals deposits Derbyshire districts durable earth employed engineer extensively felspar fire-clay formations gems geologist Geology gold granites greenstones grits gypsum hard heat hence hydraulic ingredients iron ironstones known lignites lime limestones lustre magnesia manganese manures marbles masses material metamorphic mineral and metallic mortar nature obtained occasionally occur Oolite ornamental oxide peat pigments polishing porphyries potash preparation purposes pyrites quarries quartz require rocks saline salts sand sandstones schists serpentines shales silica Silurian silver soda sodium soft soils specific gravity springs stones strata stratified structure substances sulphate sulphide sulphuric acid surface tertiary texture thickness tints tion tons usually varieties various vary veins volcanic yellow yield zinc