Mineralogia CornubiensisРипол Классик, 1778 - 331 من الصفحات |
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الصفحة
... seen opened before ; yet it can 'be considered only as a sum'mary os Mining, it bein endless to enter into all its different modifications. The fist? chapter treats of the discovery os Minos by the Virgula, Shoding, and Costeaning ...
... seen opened before ; yet it can 'be considered only as a sum'mary os Mining, it bein endless to enter into all its different modifications. The fist? chapter treats of the discovery os Minos by the Virgula, Shoding, and Costeaning ...
الصفحة iii
... seen, that the working of Lodes was unknown to our ancestors in the first ten centuries after the incarnation 5 so that we may reasonably conclude, our Lode or Mine WOrks are not of 700 years standing. It has been hitherto an object of ...
... seen, that the working of Lodes was unknown to our ancestors in the first ten centuries after the incarnation 5 so that we may reasonably conclude, our Lode or Mine WOrks are not of 700 years standing. It has been hitherto an object of ...
الصفحة iv
... seen in all the illands. If, in those days, the Metal was produced from stream or shode stones only, are must undoubtedly have discovered, in latter times, those Lodes or veins from whence they were dismembered by the deluge. They must ...
... seen in all the illands. If, in those days, the Metal was produced from stream or shode stones only, are must undoubtedly have discovered, in latter times, those Lodes or veins from whence they were dismembered by the deluge. They must ...
الصفحة x
... seen, complains, that the Tin ITVLDUEB were then small', but, in the preceding reigns of Janics the first, and Charles the firfl, the mount of Block-Tin yearly, was from fourteen hundred to sixteen hundred to. lt was also found b the ...
... seen, complains, that the Tin ITVLDUEB were then small', but, in the preceding reigns of Janics the first, and Charles the firfl, the mount of Block-Tin yearly, was from fourteen hundred to sixteen hundred to. lt was also found b the ...
الصفحة 17
... seen to arise from every shaft, when the air is cool, clear, and dense ; and it may be supposed, that, as it ascends through the natural and artificial outlets of its womb, it is more or less condensed by the external air, in ...
... seen to arise from every shaft, when the air is cool, clear, and dense ; and it may be supposed, that, as it ascends through the natural and artificial outlets of its womb, it is more or less condensed by the external air, in ...
المحتوى
i | |
x | |
1 | |
5 | |
22 | |
The corpuſcular philoſophers accomlſtzfor it ſlang | 118 |
Of the Sumph or finiſ of the Mind which ſhould be in | 170 |
Inſtancesef the mortiferous effects oſ Damps 200 | 199 |
The various Manuductions uſed in dreſſing of Cozfer and Lead Ores and Sampling Copper Ores for S | 239 |
Drefliug of Lead Ore nearly the ſinne as Copper 243 | 245 |
and tracting 249 How to diſcover the contents of a Mineral | 253 |
elncidatedhMethodto try the firſt ſoortia ſhe Silverexplained | 259 |
of a ton oſ Copper Ore by the aſſay 264 26 5 266 To aſſay | 271 |
and repeated ſmeltings therein 274 Of the Metal calciner | 279 |
charging fluxing and tapping the ſurnaceSizing the ſcoria | 285 |
Of ſelling or barteririg black Tin for whitÞForm of a Tin bill | 292 |
BOOK | 214 |
Pitwor s and ſhimpings 223 Of the crop and rough Tin | 231 |
CHAP | 318 |
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
Adit almoſt alſo anſwer Antimony becauſe bottom called caſe cauſe colour conſequence conſider conſiderable Copper Cornwall courſe Cryſtal depth deſcribed different diſcovered diſſolved diſtance dreſſing driſt earth eaſily eaſt effect eſpecially Eſq expence fathom feet fifty find fine fire firſt Fiſſures five fix Gold Goſſan graſs horſes houſe hundred inches inſtance Iron itſelf laſt leaſt leſs likewiſe Lode loſs meaſure Metals Mineral Mines Minos moſt Mundick muſt neceſſary obſerved off perſon pounds preſent proceſs purpoſe quantity raiſed reaſon Redruth reſpect riſe ſaid ſalt ſame ſay ſea ſee ſeems ſeen ſeldom ſeparate ſerve ſet ſeven ſeveral Shaft ſhall Shaſt ſhillings Shode ſhort ſhould ſide ſince ſink ſix ſmall ſolid ſome ſometimes ſoon ſor ſorts ſound ſouth ſquare ſtanding ſtate ſteam ſtone Stones ſtrata ſubject ſubſtance ſuch ſufficient ſunk ſuppoſe ſurſace themſelves theſe thoſe thouſand uſe uſually vein waſhed waſte weſt White Tin whoſe