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
... colours , 270. To affay Bismuth , 271 . С НА Р. II . Of Smelting of Copper Ores in the great Furnaces called Copper Works . OF F the construction of furnaces and the Materials thereof , 271 , 272. The calciner , the reverberatory ...
... colours , 270. To affay Bismuth , 271 . С НА Р. II . Of Smelting of Copper Ores in the great Furnaces called Copper Works . OF F the construction of furnaces and the Materials thereof , 271 , 272. The calciner , the reverberatory ...
الصفحة ii
... colour , shape , and gravity , must have attracted the notice . and confideration of the firft natives , if they did not allure the attention of thofe immediate emigrants who were " fcattered " over the face of the earth , when the fons ...
... colour , shape , and gravity , must have attracted the notice . and confideration of the firft natives , if they did not allure the attention of thofe immediate emigrants who were " fcattered " over the face of the earth , when the fons ...
الصفحة iii
... colour , and innocent properties of the Metal , no doubt rendered it as valuable in their eftimation as Silver and Gold ; until , by great abundance , which renders all things cheap , it funk in the scale of comparative excellence with ...
... colour , and innocent properties of the Metal , no doubt rendered it as valuable in their eftimation as Silver and Gold ; until , by great abundance , which renders all things cheap , it funk in the scale of comparative excellence with ...
الصفحة 8
... colours and degrees of purity , yet there is no effential difference between them , from one containing a nobler Metal than another ; which would scarcely be the cafe , without some stronger evidence of exaltation , notwithstanding all ...
... colours and degrees of purity , yet there is no effential difference between them , from one containing a nobler Metal than another ; which would scarcely be the cafe , without some stronger evidence of exaltation , notwithstanding all ...
الصفحة 23
... colours , and properties , with refpect to the fame individual Rock or Stone ; which is a manifeft indication , that its different parts were ori- ginally loose and distinct from each other , until they were con- joined into an entire ...
... colours , and properties , with refpect to the fame individual Rock or Stone ; which is a manifeft indication , that its different parts were ori- ginally loose and distinct from each other , until they were con- joined into an entire ...
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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