Mineralogia Cornubiensis: A Treatise on Minerals, Mines, and Mining: Containing the Theory and Natural History of Strata, Fissures, and Lodes, with the Methods of Discovering and Working of Tin, Copper, and Lead Mines, and of Cleansing and Metalizing Their Products; Shewing Each Particular Process for Dressing, Assaying and Smelting of Ores. To which is Added, an Explanation of the Terms and Idioms of MinersD. Bradford Barton Limited, 1778 - 331 من الصفحات |
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الصفحة
... small veins of Lodes - Lodes fqueezed small in hard ground , 104. Of metallick Lodes contraing each other - Why Tin Lodes were antecedent to parallel Goffan and Crofs - Goffan Lodes , 105. The inclination or underlie of Lodes towards ...
... small veins of Lodes - Lodes fqueezed small in hard ground , 104. Of metallick Lodes contraing each other - Why Tin Lodes were antecedent to parallel Goffan and Crofs - Goffan Lodes , 105. The inclination or underlie of Lodes towards ...
الصفحة
... small , but of great value , and made the most of , 152. Of the fire engine- Weight of a given small column of water - Neither men nor horfes could draw it , 153. Defcription of the fire engine- The boiler , houfe cylinder , pifton ...
... small , but of great value , and made the most of , 152. Of the fire engine- Weight of a given small column of water - Neither men nor horfes could draw it , 153. Defcription of the fire engine- The boiler , houfe cylinder , pifton ...
الصفحة xiii
... small , if true ! how inadequate to the fum laid out and expended ! This fhews the infatuation , and delufive hopes of political gaming , under which ftigma it apparently lies . We shall for- bear any further reflections upon the ...
... small , if true ! how inadequate to the fum laid out and expended ! This fhews the infatuation , and delufive hopes of political gaming , under which ftigma it apparently lies . We shall for- bear any further reflections upon the ...
الصفحة 5
... small grains of a complete metallick appearance . This Copper and ruft on being smelted with a reducing flux , fometimes produce above three - fourths of their weight pure Metal . The water generally used for this purpose is that which ...
... small grains of a complete metallick appearance . This Copper and ruft on being smelted with a reducing flux , fometimes produce above three - fourths of their weight pure Metal . The water generally used for this purpose is that which ...
الصفحة 10
... small , as to render them capable of being protruded and forced away by the Waters into the contiguous ftrata ; while the impurer parts of other places are impelled by the Waters into the Mines , where they fubfide or lodge , in the ...
... small , as to render them capable of being protruded and forced away by the Waters into the contiguous ftrata ; while the impurer parts of other places are impelled by the Waters into the Mines , where they fubfide or lodge , in the ...
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عبارات ومصطلحات مألوفة
Adit adventurers affay alfo almoſt alſo anſwer Antimony Aqua Fortis becauſe beſt black Tin bottom buddle cafe calcination called caufe cauſe colour confequence confiderable Copper Cornwall courſe Cryſtal depth diffolved diſcovered diſcovery diſtance dreffing earth eaſily expence facks faid falts fame fathoms feet feldom feparated feven feveral fhall fhillings fhould fhovel fide Fiffures fink fire firft firſt fituation fize fmall folid fome fometimes foon fouth fteam ftrata ftratum fubject fuch fufficient funk fuppofe furface Goffan Gold ground hundred inches inftance Iron itſelf laft lefs leſs likewife Lode meaſure Metal metallick Mineral Mines moft moſt muft Mundick muſt neceffary obferved occafion particles perfons petrifactive pounds prefent purpoſe quantity raiſed reaſon Redruth refpect rich Semi-metals ſeparate Shaft ſhall Shode Silver ſmall ſome ſtate Stones thefe themſelves theſe thofe thoſe thouſand Tin-ftuff Tinners tons underlie uſed vein waſhed weft white Tin Whym