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
... observations , 116. Of the occult quality in the operator - Hazle fhoots of one year , beft , 117. Shape and fize - manner of holding the rod - the mind must be indifferent , or the rod will not anfwer , 118 . Sweat and animal ...
... observations , 116. Of the occult quality in the operator - Hazle fhoots of one year , beft , 117. Shape and fize - manner of holding the rod - the mind must be indifferent , or the rod will not anfwer , 118 . Sweat and animal ...
الصفحة
... Observations , 174. of the furgeon of a Mine , 175. Obfervations , 176. Propofals for a county hospital , 177. Of working the Lode by double pick - men , 178. Relieving the place - Winding the work , 179 . of finking , driving , and ...
... Observations , 174. of the furgeon of a Mine , 175. Obfervations , 176. Propofals for a county hospital , 177. Of working the Lode by double pick - men , 178. Relieving the place - Winding the work , 179 . of finking , driving , and ...
الصفحة ii
... observe the fingular fhape and weight of fhode and stream Tin , without confidering the contents as a Mineral , which by its fuperior gravity would afford fome metal- line fubftance ; especially , when by a comparison with the Mineral ...
... observe the fingular fhape and weight of fhode and stream Tin , without confidering the contents as a Mineral , which by its fuperior gravity would afford fome metal- line fubftance ; especially , when by a comparison with the Mineral ...
الصفحة 61
... observed , that Copper is the most easily dif- folved of any Metal , even by common water ; but certainly the diffolution must be quicker , if that water is charged with acid or alkaline principles . Wherever Copper is found , there is ...
... observed , that Copper is the most easily dif- folved of any Metal , even by common water ; but certainly the diffolution must be quicker , if that water is charged with acid or alkaline principles . Wherever Copper is found , there is ...
الصفحة 76
... observation prove its falfity . It cannot depend upon the confinement of mineral water in one particular place , that a Lode shall be rich in Metal , so much as upon the strength and peculiar attraction of the nidus through which it ...
... observation prove its falfity . It cannot depend upon the confinement of mineral water in one particular place , that a Lode shall be rich in Metal , so much as upon the strength and peculiar attraction of the nidus through which it ...
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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