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 216
... Shilling Van , which is not rich ; but if the Van will cover or equal the weight of a crown piece , it is good Tin - ftuff , and is termed a Crown Van . Now they fay , the Shilling Van will produce one hundred grofs or avordupois weight ...
... Shilling Van , which is not rich ; but if the Van will cover or equal the weight of a crown piece , it is good Tin - ftuff , and is termed a Crown Van . Now they fay , the Shilling Van will produce one hundred grofs or avordupois weight ...
الصفحة 230
... a sample of three tons ; and , to his own great surprise , as well as that of others , he found that he could give seven pounds four shillings and and fixpence ton for them , which he actually did 230 OF SAMPLING , VANNING , STAMPING ,
... a sample of three tons ; and , to his own great surprise , as well as that of others , he found that he could give seven pounds four shillings and and fixpence ton for them , which he actually did 230 OF SAMPLING , VANNING , STAMPING ,
الصفحة 279
... shilling & hundred of fine Copper to be paid to the Duke of Cornwall ; which , as it would be an addition to the ducal revenue , and managed without any furcharge by the fame coin- age officers , so would it effectually fecure the ...
... shilling & hundred of fine Copper to be paid to the Duke of Cornwall ; which , as it would be an addition to the ducal revenue , and managed without any furcharge by the fame coin- age officers , so would it effectually fecure the ...
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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