Mineralogia CornubiensisРипол Классик, 1778 - 331 من الصفحات |
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الصفحة ii
... must have been good plenti_ suDy-disseminatod 'upon the sin-face of our vallies, and the sides of- tmr hills and! mountains. Those fro ments and nodules, by their-colour, shape, and ravity, must Eave attract-ed the notice and ...
... must have been good plenti_ suDy-disseminatod 'upon the sin-face of our vallies, and the sides of- tmr hills and! mountains. Those fro ments and nodules, by their-colour, shape, and ravity, must Eave attract-ed the notice and ...
الصفحة iv
... must undoubtedly have discovered, in latter times, those Lodes or veins from whence they were dismembered by the deluge. They must have been wroucpht for Tin since the earlier ages 5 and some remains of such Lo es would now-'be visible ...
... must undoubtedly have discovered, in latter times, those Lodes or veins from whence they were dismembered by the deluge. They must have been wroucpht for Tin since the earlier ages 5 and some remains of such Lo es would now-'be visible ...
الصفحة xi
... must have been yearly forty-seven thousand three unrier 'nd fifty pounde. From '736 inclufive to the end os 1745, fiventy>fiw= thousand fire. hundred and Went) time OF Copper Or: were fold an: fer-ten pound: eight filling' and fixpcnce ...
... must have been yearly forty-seven thousand three unrier 'nd fifty pounde. From '736 inclufive to the end os 1745, fiventy>fiw= thousand fire. hundred and Went) time OF Copper Or: were fold an: fer-ten pound: eight filling' and fixpcnce ...
الصفحة xii
... must have returned one hundred and seventy-seven thousand eight hundred and thirty-three pounds every year of the last ten. In order to form a more Comprehen'five view os the progress so'lately made in Mining For. Copper, we have ...
... must have returned one hundred and seventy-seven thousand eight hundred and thirty-three pounds every year of the last ten. In order to form a more Comprehen'five view os the progress so'lately made in Mining For. Copper, we have ...
الصفحة 1
... must be speculatiVe and controvertihlel The 'm'undane thennes-os Burnet', Woodwnrd, Whiflion, De la Prime, Scheuzor, and-others, though they have all 'theirprobabilities, ate-all- liable-'to manyjobjections. Indeed" to scarch into the=_ ...
... must be speculatiVe and controvertihlel The 'm'undane thennes-os Burnet', Woodwnrd, Whiflion, De la Prime, Scheuzor, and-others, though they have all 'theirprobabilities, ate-all- liable-'to manyjobjections. Indeed" to scarch into the=_ ...
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