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
... other . The theory here given , is , in some instances , established in the process of precipitation . The third chapter , which treats of the fubftances of Minerals , Metals , and and Salts , is dry and tedious ; but as PRE FAC E.
... other . The theory here given , is , in some instances , established in the process of precipitation . The third chapter , which treats of the fubftances of Minerals , Metals , and and Salts , is dry and tedious ; but as PRE FAC E.
الصفحة
... some matters indifpenfably connected with that art . The laft chapter of this book treats of Damps , Dialling , and Levelling , with practical inftances and remarks , fupported by experience , and altogether neceffary . The fourth book ...
... some matters indifpenfably connected with that art . The laft chapter of this book treats of Damps , Dialling , and Levelling , with practical inftances and remarks , fupported by experience , and altogether neceffary . The fourth book ...
الصفحة
... Some Miners in Cornwall employed at sea in the fisheries , or under - ground , 35. No payment , however poisonous , will prevent the Teredo - worm from boring fhips bottoms , 36. The author's preparation highly fubtilized and proposed ...
... Some Miners in Cornwall employed at sea in the fisheries , or under - ground , 35. No payment , however poisonous , will prevent the Teredo - worm from boring fhips bottoms , 36. The author's preparation highly fubtilized and proposed ...
الصفحة
... some springs , 100 . Why metallick Lodes may be rich or fteril near the Cross - Courfe , which is another proof of the author's opinion of the origin of Metals - Tin and Copper Lodes antecedent to Cross - Courses , Mr. Whifton's ...
... some springs , 100 . Why metallick Lodes may be rich or fteril near the Cross - Courfe , which is another proof of the author's opinion of the origin of Metals - Tin and Copper Lodes antecedent to Cross - Courses , Mr. Whifton's ...
الصفحة
... Some Lodes yield no Shode ; why , 128. Lodes often covered with a double or treble shelf -The effects of the flood demonftrated by Shode upon the Cornish Strata , 129 , 130. Discovery of Lodes very effectual by Levels , Adits , & c ...
... Some Lodes yield no Shode ; why , 128. Lodes often covered with a double or treble shelf -The effects of the flood demonftrated by Shode upon the Cornish Strata , 129 , 130. Discovery of Lodes very effectual by Levels , Adits , & c ...
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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