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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النتائج 1-5 من 69
الصفحة
... Weight Office James White , Efq ; Barrifter , Exeter Mr. John Whiting , Sugar Refiner , Ratcliffe Henry Wickham , Efq ; near Brad- ford , Yorkshire Jacob Wilkinfon , Efq ; M. P. John Wilkinson . Efq ; Brofeley Dr. Richard Williams , New ...
... Weight Office James White , Efq ; Barrifter , Exeter Mr. John Whiting , Sugar Refiner , Ratcliffe Henry Wickham , Efq ; near Brad- ford , Yorkshire Jacob Wilkinfon , Efq ; M. P. John Wilkinson . Efq ; Brofeley Dr. Richard Williams , New ...
الصفحة
... weight , 51 . found pure among our Stream Tin , 52. diffolves in Aqua Regia only , 52. Gold leaf will plate to the three hundred and fixty thoufandth part of an inch thick - It never decays , & c . 53 . Platina , a Metal lately ...
... weight , 51 . found pure among our Stream Tin , 52. diffolves in Aqua Regia only , 52. Gold leaf will plate to the three hundred and fixty thoufandth part of an inch thick - It never decays , & c . 53 . Platina , a Metal lately ...
الصفحة
... Weight of a given small column of water - Neither men nor horfes could draw it , 153. Defcription of the fire engine- The boiler , houfe cylinder , pifton , great bob or lever , pump rods , & c . 154 . Their diftinct and relative ufes ...
... Weight of a given small column of water - Neither men nor horfes could draw it , 153. Defcription of the fire engine- The boiler , houfe cylinder , pifton , great bob or lever , pump rods , & c . 154 . Their diftinct and relative ufes ...
الصفحة ii
... 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 Ores of other Metals , known ...
... 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 Ores of other Metals , known ...
الصفحة xi
... weight for common Tin , are the " lowest prices for which fuch Tin will be fold to the con- " tractors , exclufive of all coinage duties and fees . " The rapid increase of the produce of our Tin Mines for the laft thirty years , is ...
... weight for common Tin , are the " lowest prices for which fuch Tin will be fold to the con- " tractors , exclufive of all coinage duties and fees . " The rapid increase of the produce of our Tin Mines for the laft thirty years , is ...
المحتوى
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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