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
... means leffen the importance of the Mining intereft . When we reflect upon the vaft profufion of Silver , Tin , Copper , Lead , Iron , and Coal , yearly produced from the bowels of our Mines , which exceedingly furpaffes our internal ...
... means leffen the importance of the Mining intereft . When we reflect upon the vaft profufion of Silver , Tin , Copper , Lead , Iron , and Coal , yearly produced from the bowels of our Mines , which exceedingly furpaffes our internal ...
الصفحة vi
... means not only a haven of the fea for traffick , but a place where a river of water hath its current into the fea ; from whence , perhaps , the Latins had their Ictus , to fignify the courfe of a river . And from this etymology we may ...
... means not only a haven of the fea for traffick , but a place where a river of water hath its current into the fea ; from whence , perhaps , the Latins had their Ictus , to fignify the courfe of a river . And from this etymology we may ...
الصفحة viii
... means the cafe in practical Mining : for , if a Mine , when he is firft difcovered , throws up a large profit to the ad- venturers , and fails foon after to their lofs and detriment ; they nevertheless pursue their object , under the ...
... means the cafe in practical Mining : for , if a Mine , when he is firft difcovered , throws up a large profit to the ad- venturers , and fails foon after to their lofs and detriment ; they nevertheless pursue their object , under the ...
الصفحة ix
... means . Among the working Tinners , this darling Metal holds her empire in the heart ; probably because of its locality , and the privileges , immunities , and ftannary laws , whereby they are distinguished , fupported , and protected ...
... means . Among the working Tinners , this darling Metal holds her empire in the heart ; probably because of its locality , and the privileges , immunities , and ftannary laws , whereby they are distinguished , fupported , and protected ...
الصفحة x
... mean proportion was equal to fifteen hundred tons & annum . Since the foregoing time , we obferve a gradual increafe for thirty years following ; for , in the year 1742 , a propofal was made by the Mines Royal Company Company in London ...
... mean proportion was equal to fifteen hundred tons & annum . Since the foregoing time , we obferve a gradual increafe for thirty years following ; for , in the year 1742 , a propofal was made by the Mines Royal Company Company in London ...
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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