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
... set forth , as fuccinctly and clearly as the materials I have obtained would allow , the proceffes of smelting and metallizing those products , without infringing too much upon the fecrets of private trade . And though I have not ...
... set forth , as fuccinctly and clearly as the materials I have obtained would allow , the proceffes of smelting and metallizing those products , without infringing too much upon the fecrets of private trade . And though I have not ...
الصفحة
... Set or Grant - Sinking the Hatch or 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 ...
... Set or Grant - Sinking the Hatch or 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 ...
الصفحة
... Set or Grant for Mining ; of finking Shafts , driving Adits , digging and raising of Ores , drawing the Water , and working the Mines . O F Bounds and the cutting of them , 137. Their anti- quity - Charter , 33d Edward I , anno 1305 ...
... Set or Grant for Mining ; of finking Shafts , driving Adits , digging and raising of Ores , drawing the Water , and working the Mines . O F Bounds and the cutting of them , 137. Their anti- quity - Charter , 33d Edward I , anno 1305 ...
الصفحة 33
... set on foot a manufactory of Roman or Blue Vitriol , at Treleigh in Redruth , about five and twenty years fince ; which dropped , only with a lofs of ninety pounds , by means of fome difputes and difagreements among the perfons ...
... set on foot a manufactory of Roman or Blue Vitriol , at Treleigh in Redruth , about five and twenty years fince ; which dropped , only with a lofs of ninety pounds , by means of fome difputes and difagreements among the perfons ...
الصفحة 132
... Set , of the land owner or lord of the fee , for fuch a spot of ground , and agrees to pay him a certain part clear of all expence in Black Tin ; that is , Tin made clean from all wafte , and ready for fmelting . The confideration is ...
... Set , of the land owner or lord of the fee , for fuch a spot of ground , and agrees to pay him a certain part clear of all expence in Black Tin ; that is , Tin made clean from all wafte , and ready for fmelting . The confideration is ...
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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