Mineralogia CornubiensisРипол Классик, 1778 - 331 من الصفحات |
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الصفحة ii
... considering the contents as a Mineral, which by its so erior gravity would afford some metalline subfiance; especial? ._. when by a comparison with the Mineral Oros of other Metals, known long before the flood, they mufi have had all ...
... considering the contents as a Mineral, which by its so erior gravity would afford some metalline subfiance; especial? ._. when by a comparison with the Mineral Oros of other Metals, known long before the flood, they mufi have had all ...
الصفحة xi
... consider of the prbposals 5 and they' reported, " That, the qmnlit)r Of Tin raised yearly in N Comwall, afar] avenge for many years last pafl, hath been " about two thousand one hundred tom; and resolved, 'that U three pounds nine ...
... consider of the prbposals 5 and they' reported, " That, the qmnlit)r Of Tin raised yearly in N Comwall, afar] avenge for many years last pafl, hath been " about two thousand one hundred tom; and resolved, 'that U three pounds nine ...
الصفحة 14
... consider, and suppose it it generally considered, as effected by the salt water being filtrated and strained through a considerrhlc body of earth in its pass froth the sea to the fountain head. As a justification of this uppofition, We ...
... consider, and suppose it it generally considered, as effected by the salt water being filtrated and strained through a considerrhlc body of earth in its pass froth the sea to the fountain head. As a justification of this uppofition, We ...
الصفحة 17
... consider, how far the density and consequential pressure of the atmosphere ma),r contribute to this. appearance more than a hundred fathoms underground. It is true, the Mines are continually sraught with a kind of warm vapour, which may ...
... consider, how far the density and consequential pressure of the atmosphere ma),r contribute to this. appearance more than a hundred fathoms underground. It is true, the Mines are continually sraught with a kind of warm vapour, which may ...
الصفحة 23
... consider the nature of the Stones which are dug out os the ground; for they frequently meet with large solid rocke, composed of several small Stones united together, os different forms, colours, and properties, with respect to the same ...
... consider the nature of the Stones which are dug out os the ground; for they frequently meet with large solid rocke, composed of several small Stones united together, os different forms, colours, and properties, with respect to the same ...
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