Mineralogia CornubiensisРипол Классик, 1778 - 331 من الصفحات |
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الصفحة
... necessary; and this ad'vantage, at least, I can with truth lay claim to: yet as this ist-he writer-'e first attempt in literary composition, it will, For that reason, have many faults; and he must rel on the eandour os the publick 'for ...
... necessary; and this ad'vantage, at least, I can with truth lay claim to: yet as this ist-he writer-'e first attempt in literary composition, it will, For that reason, have many faults; and he must rel on the eandour os the publick 'for ...
الصفحة
... necessary addition to the preceding chapters, it could not he 'omitted'With 'respect to the nature and history of Minerals, I confine myself to those os Cornwall only; and as they OCC'Lll' in the course of my Work, have described each ...
... necessary addition to the preceding chapters, it could not he 'omitted'With 'respect to the nature and history of Minerals, I confine myself to those os Cornwall only; and as they OCC'Lll' in the course of my Work, have described each ...
الصفحة
... necessary. The fourth book treats os the several manuductions used in dressing oF Tin, Copper, and Lead Orcs, and contains some brief remarks upon dressing Gold, Silver, &ac. Though the general manner os dressing Copper Orc was first ...
... necessary. The fourth book treats os the several manuductions used in dressing oF Tin, Copper, and Lead Orcs, and contains some brief remarks upon dressing Gold, Silver, &ac. Though the general manner os dressing Copper Orc was first ...
الصفحة iv
... necessary an appendage to a Mine as an adit to unwatcr the workings, is not to be 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 ...
... necessary an appendage to a Mine as an adit to unwatcr the workings, is not to be 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 ...
الصفحة x
... necessary for the conduct and maintenance of the Mines; whereby great trade is kept up, large duties to the community' are paid, 'and a. constant uniform nursery for seemen is easily and cheaply preserved, as our quota, of additional ...
... necessary for the conduct and maintenance of the Mines; whereby great trade is kept up, large duties to the community' are paid, 'and a. constant uniform nursery for seemen is easily and cheaply preserved, as our quota, of additional ...
المحتوى
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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