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
... Lode or Fiffure , various- Length or depth of a Fiffure , unlimited , 79. The direction of Tin and Copper Lodes in Cornwall always eaft and weft , 80 . Their deflexion , inclination , or underlie , north or fouth , 80 . Of horizontal ...
... Lode or Fiffure , various- Length or depth of a Fiffure , unlimited , 79. The direction of Tin and Copper Lodes in Cornwall always eaft and weft , 80 . Their deflexion , inclination , or underlie , north or fouth , 80 . Of horizontal ...
الصفحة
... Lode , better for Tin than Copper ; a Scovan Lode , productive of Tin only ; a Caple Lode ; a Pryan Lode , very lax and fandy , often rich , 90 . A Quartz Lode , very unkindly ; a Crystal Lode , four forts , 91 , 92. A Killas Lode - Mundick ...
... Lode , better for Tin than Copper ; a Scovan Lode , productive of Tin only ; a Caple Lode ; a Pryan Lode , very lax and fandy , often rich , 90 . A Quartz Lode , very unkindly ; a Crystal Lode , four forts , 91 , 92. A Killas Lode - Mundick ...
الصفحة
... Lode , by a Cross - Goffan , eafily found by the rod - its comparative attraction and repulfion , 122. At any depth , water found by the rod - Inftances of Lodes found by it , 123. Of Cofteaning and Shoding -Shode Stones feparated by ...
... Lode , by a Cross - Goffan , eafily found by the rod - its comparative attraction and repulfion , 122. At any depth , water found by the rod - Inftances of Lodes found by it , 123. Of Cofteaning and Shoding -Shode Stones feparated by ...
الصفحة
... Lode and turning house of finking other Shafts and ftopeing the Lode , 144,145 . Of the Adit or Level , 145. Dimensions of the Adit and Adit Shafts - Of fallering the Adit for air , 146 , 147. Great differ- ence in the charge of driving ...
... Lode and turning house of finking other Shafts and ftopeing the Lode , 144,145 . Of the Adit or Level , 145. Dimensions of the Adit and Adit Shafts - Of fallering the Adit for air , 146 , 147. Great differ- ence in the charge of driving ...
الصفحة
... Lode annually broken - Above 2,000,000 tons of Lode and Strata broken yearly , 185 , 186. Setting a Mine upon Tribute - First , of a Tin Mine - Of dividing , redividing , and cafting lots upon Doles , either in Waftrel or Several ...
... Lode annually broken - Above 2,000,000 tons of Lode and Strata broken yearly , 185 , 186. Setting a Mine upon Tribute - First , of a Tin Mine - Of dividing , redividing , and cafting lots upon Doles , either in Waftrel or Several ...
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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