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
... Silver , Tin , Copper , Lead , Iron , and Coal , yearly produced from the bowels of our Mines , which exceedingly furpaffes our internal consumption , and there- fore must afford a very confiderable branch of commerce ; we fhall find it ...
... Silver , Tin , Copper , Lead , Iron , and Coal , yearly produced from the bowels of our Mines , which exceedingly furpaffes our internal consumption , and there- fore must afford a very confiderable branch of commerce ; we fhall find it ...
الصفحة
... Silver , & c . Though the general manner of dreffing Copper Ore was first taken from the methods used in the Lead Mines , yet there are so great a variety of Copper Ores requiring very oppofite treatment in their drefling , that I hope ...
... Silver , & c . Though the general manner of dreffing Copper Ore was first taken from the methods used in the Lead Mines , yet there are so great a variety of Copper Ores requiring very oppofite treatment in their drefling , that I hope ...
الصفحة
... Silver ; by which proceffes the curious may judge how far the Mundicks of one place are fuperior to thofe of another for the precious Metals , or whether they contain any Silver or Gold . The proceffes for affaying Copper Ores by ...
... Silver ; by which proceffes the curious may judge how far the Mundicks of one place are fuperior to thofe of another for the precious Metals , or whether they contain any Silver or Gold . The proceffes for affaying Copper Ores by ...
الصفحة
... Silver , Lead , and Tin lefs fo , 30. Ore and Mineral properly defined , 30. Mineralogy claffed , 30. Of earths ; of the Steatites Cornubienfis , or Cornifh foap - rock , 31. compofed of Talc and hard clay ; beft compofition for China ...
... Silver , Lead , and Tin lefs fo , 30. Ore and Mineral properly defined , 30. Mineralogy claffed , 30. Of earths ; of the Steatites Cornubienfis , or Cornifh foap - rock , 31. compofed of Talc and hard clay ; beft compofition for China ...
الصفحة
... Silver feldom found in Britain out of Lead - Of the Silver Mines in Europe - Of the Mine of Potofi , 59. But four forts of Silver Ore - Silver per too foft for use , 60. Copper , foluble in all menftrua - Native Copper very common at ...
... Silver feldom found in Britain out of Lead - Of the Silver Mines in Europe - Of the Mine of Potofi , 59. But four forts of Silver Ore - Silver per too foft for use , 60. Copper , foluble in all menftrua - Native Copper very common at ...
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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