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
... hard clay ; beft compofition for China ware , 32 . Fine clay and Talcy Granite , or Moorftone , used for Porcelain manufactory - Grouan clay makes fine bricks for furnaces , & c . -Of the crucible manufactory at Truro - The best ...
... hard clay ; beft compofition for China ware , 32 . Fine clay and Talcy Granite , or Moorftone , used for Porcelain manufactory - Grouan clay makes fine bricks for furnaces , & c . -Of the crucible manufactory at Truro - The best ...
الصفحة
... hard , better difpofed for Tin than Copper , 94. Different Lodes , their alterations ; which disposed for Tin , Copper , and Lead - Mine Stones have their finufes or joints , 95. Of Stones in Lodes foreign to their nature - The Elvan ...
... hard , better difpofed for Tin than Copper , 94. Different Lodes , their alterations ; which disposed for Tin , Copper , and Lead - Mine Stones have their finufes or joints , 95. Of Stones in Lodes foreign to their nature - The Elvan ...
الصفحة
... hard ground , 104. Of metallick Lodes contraing each other - Why Tin Lodes were antecedent to parallel Goffan and Crofs - Goffan Lodes , 105. The inclination or underlie of Lodes towards each other , and the changes and diforders ...
... hard ground , 104. Of metallick Lodes contraing each other - Why Tin Lodes were antecedent to parallel Goffan and Crofs - Goffan Lodes , 105. The inclination or underlie of Lodes towards each other , and the changes and diforders ...
الصفحة
... coining - Of the remaining drofs - its further purification - Of the flaggs called Hard - heads , 284. The requifites of a good Tin fmelter - Obfervations and reflections , 285 . CHAP . CHA P. IV . Of the Sale of Copper Ores CONTENTS .
... coining - Of the remaining drofs - its further purification - Of the flaggs called Hard - heads , 284. The requifites of a good Tin fmelter - Obfervations and reflections , 285 . CHAP . CHA P. IV . Of the Sale of Copper Ores CONTENTS .
الصفحة xii
... hard gotten commodities , has de- creased in some ratio to the advance in quantity , which ought to be a matter of very ferious enquiry with all the gentlemen of Cornwall , whom it fo nearly concerns , and from whom we may expect that ...
... hard gotten commodities , has de- creased in some ratio to the advance in quantity , which ought to be a matter of very ferious enquiry with all the gentlemen of Cornwall , whom it fo nearly concerns , and from whom we may expect that ...
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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