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
... whole , as it tends to inform the publick of matters very little understood or con- fidered beyond the confines of a Mineral district . Minerals that are plenty and precious being generally confined to Imall tracts of country and a ...
... whole , as it tends to inform the publick of matters very little understood or con- fidered beyond the confines of a Mineral district . Minerals that are plenty and precious being generally confined to Imall tracts of country and a ...
الصفحة
... whole . The chapter following relates to the management of a Mine when in a proper courfe of working ; wherein fuch maxims are laid down , that a novice in conducting a Mine may understand some matters indifpenfably connected with that ...
... whole . The chapter following relates to the management of a Mine when in a proper courfe of working ; wherein fuch maxims are laid down , that a novice in conducting a Mine may understand some matters indifpenfably connected with that ...
الصفحة ii
... whole island ; and that the antiquity of our Tin trade has been established upon mercantile principles , for at least two thousand four hundred years past . I hope the reader will not judge it improbable , if we fuppofe that the first ...
... whole island ; and that the antiquity of our Tin trade has been established upon mercantile principles , for at least two thousand four hundred years past . I hope the reader will not judge it improbable , if we fuppofe that the first ...
الصفحة iv
... whole . The veftigia of any Tin Lodes , Mines , or workings , in the iflands of Scilly , are infufficient to convince us , that they only gave this beautiful Metal to the world : the remains of any fuch workings are scarcely difcernible ...
... whole . The veftigia of any Tin Lodes , Mines , or workings , in the iflands of Scilly , are infufficient to convince us , that they only gave this beautiful Metal to the world : the remains of any fuch workings are scarcely difcernible ...
الصفحة vii
... whole island , which , with fome little variation , it retains to this day , and proves the antiquity , locality , and fuperiority of our product , and its univerfal fupply for the ufe of mankind . ** Such an abundance of Copper Ore ...
... whole island , which , with fome little variation , it retains to this day , and proves the antiquity , locality , and fuperiority of our product , and its univerfal fupply for the ufe of mankind . ** Such an abundance of Copper Ore ...
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طبعات أخرى - عرض جميع المقتطفات
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