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
... Shafts , driving Adits , digging and raifing of Ores , drawing the water , and every other operation under - ground . This is intended to ex- plain the feveral parts of a Mine , and their dependency on each other ; and to evince that ...
... Shafts , driving Adits , digging and raifing of Ores , drawing the water , and every other operation under - ground . This is intended to ex- plain the feveral parts of a Mine , and their dependency on each other ; and to evince that ...
الصفحة
... Shaft - Various breadths , depths , and thickneffes of Stream Tin Strata , 132. Of the level , the overburden , and discharging the water by hand or water wheel pumps - Of the Tye , 133. Great deftruction of land , by Streaming , which ...
... Shaft - Various breadths , depths , and thickneffes of Stream Tin Strata , 132. Of the level , the overburden , and discharging the water by hand or water wheel pumps - Of the Tye , 133. Great deftruction of land , by Streaming , which ...
الصفحة
... Shaft or underlier , Whym Shaft , and fire engine Shaft , 142 , 143. Of cutting the 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 ...
... Shaft or underlier , Whym Shaft , and fire engine Shaft , 142 , 143. Of cutting the 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 ...
الصفحة
... Shafts , to convey air and prevent Damps , 201. On Dialling in Mines ; very curious and indifpenfably neceffary , 202 , 203. Dialling for a Shaft on the Adit - end , 204 . Ditto for an underlying Shaft and various parts of a Mine , 205 ...
... Shafts , to convey air and prevent Damps , 201. On Dialling in Mines ; very curious and indifpenfably neceffary , 202 , 203. Dialling for a Shaft on the Adit - end , 204 . Ditto for an underlying Shaft and various parts of a Mine , 205 ...
الصفحة 19
... shafts , adits , and other apertures , are the principal outlets , through which the mineral effluvia of our Lodes exhale and escape , without prejudice to the lives and safety of the inhabitants . Another prodigious , general , and ...
... shafts , adits , and other apertures , are the principal outlets , through which the mineral effluvia of our Lodes exhale and escape , without prejudice to the lives and safety of the inhabitants . Another prodigious , general , and ...
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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