Economic Geology: Or, Geology in Its Relations to the Arts and ManufacturesW. Blackwood and sons, 1874 - 336 páginas |
No interior do livro
Resultados 1-5 de 27
Página 59
... noticed under Civil Engineering , Chap . VII . ) , the main requisites are beauty of colour and texture , durability , and facility of being dressed and tooled . These qualities vary very much in different rocks , some freestones being ...
... noticed under Civil Engineering , Chap . VII . ) , the main requisites are beauty of colour and texture , durability , and facility of being dressed and tooled . These qualities vary very much in different rocks , some freestones being ...
Página 63
... noticed under the chapter on Civil En- gineering . Though chiefly used for road - material , in some districts they are employed in the building of country man- sions , farmsteads , and walls ; and when properly dressed and coursed make ...
... noticed under the chapter on Civil En- gineering . Though chiefly used for road - material , in some districts they are employed in the building of country man- sions , farmsteads , and walls ; and when properly dressed and coursed make ...
Página 69
... noticed as road - material under the head of Civil Engineering ; and here we direct attention chiefly to the thick - bedded sandstones used in building , and such as may be seen in Edinburgh , Glasgow , St Andrews , Newcastle , Leeds ...
... noticed as road - material under the head of Civil Engineering ; and here we direct attention chiefly to the thick - bedded sandstones used in building , and such as may be seen in Edinburgh , Glasgow , St Andrews , Newcastle , Leeds ...
Página 73
... noticed under another head . None of them are used as building - stones ; and indeed , their paucity , the high angles at which they lie , and their distance from fuel , renders it often cheaper to bring lime from Carboniferous ...
... noticed under another head . None of them are used as building - stones ; and indeed , their paucity , the high angles at which they lie , and their distance from fuel , renders it often cheaper to bring lime from Carboniferous ...
Página 74
... noticed under another section ) ; the great bulk of them are quarried for the blast - furnace , for mor- tars , cements , agriculture , road - making , bleaching , tanning , gas purification , and other industrial purposes ; while only ...
... noticed under another section ) ; the great bulk of them are quarried for the blast - furnace , for mor- tars , cements , agriculture , road - making , bleaching , tanning , gas purification , and other industrial purposes ; while only ...
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
abundance admixture agricultural alumina amount antimony arsenic arts and manufactures basalts beds bismuth bituminous blocks Britain calcareous carbonate carbonic acid Carboniferous cements chalk chemical chiefly chloride clay clayey coal colour compact composition consists containing copper crust crystalline crystals deposits districts durable earth employed engineer felspar fire-clays formations geologist Geology gold granites gravels Greensand greenstones grits gypsum hard heat hence hornblende igneous ingredients iron ironstones known largely lignites lime limestones lustre magnesia manganese manures marbles marls masses material metamorphic mineral and metallic mortar nature obtained occasionally occur Oolite ornamental oxide peat phosphate pigments polish 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 stones strata stratified structure subsoils substances sulphate sulphide sulphuric acid surface tellurium tertiary texture thickness tion tons usually varieties various vary veins volcanic yield zinc