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 iv
... carried on the business for exportation of this grand monopoly , which fupplied all the Mediterranean markets : and we are not fingular in this thought , but are very plaufibly fupported by a learned collator of our own country , in ...
... carried on the business for exportation of this grand monopoly , which fupplied all the Mediterranean markets : and we are not fingular in this thought , but are very plaufibly fupported by a learned collator of our own country , in ...
الصفحة 7
... carry the argument too far , who fuppofe that Minerals or Metals are entirely changed from one kind to another , as Mundick into Copper , Lead into Silver , Silver into Gold , & c . For when Metals or Ores do once arrive to their utmost ...
... carry the argument too far , who fuppofe that Minerals or Metals are entirely changed from one kind to another , as Mundick into Copper , Lead into Silver , Silver into Gold , & c . For when Metals or Ores do once arrive to their utmost ...
الصفحة 10
... carried away by the ingrefs and egrefs of the pervading waters : and thus the Ores , or Metals , are continually complicated , congealed , and cemented , by the decompofing and magnetick quality in the Mines ; to which the agglutinating ...
... carried away by the ingrefs and egrefs of the pervading waters : and thus the Ores , or Metals , are continually complicated , congealed , and cemented , by the decompofing and magnetick quality in the Mines ; to which the agglutinating ...
الصفحة 13
... carry it to any distance whatever , or raise it to any conceivable height ! Imagine then , with what inexpreffible force the water from such a preffure , must be protruded through those cavities , ducts , and E hollow hollow paffages ...
... carry it to any distance whatever , or raise it to any conceivable height ! Imagine then , with what inexpreffible force the water from such a preffure , must be protruded through those cavities , ducts , and E hollow hollow paffages ...
الصفحة 24
... carry it to another . will perhaps appear , that the original power of encrufting and petrifying lics in the earths and clays themselves , a thing few have thought upon ; and that the Water ferves as a vehicle to carry the ftony matter ...
... carry it to another . will perhaps appear , that the original power of encrufting and petrifying lics in the earths and clays themselves , a thing few have thought upon ; and that the Water ferves as a vehicle to carry the ftony matter ...
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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