Mineralogia CornubiensisРипол Классик, 1778 - 331 من الصفحات |
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الصفحة
... dressing Gold, Silver, &ac. Though the general manner os dressing Copper Orc was first taken from the method: used in the Lead Mincs, yet there are so great a variety of Copper Ores requiring very opposite treatment in their dressing ...
... dressing Gold, Silver, &ac. Though the general manner os dressing Copper Orc was first taken from the method: used in the Lead Mincs, yet there are so great a variety of Copper Ores requiring very opposite treatment in their dressing ...
الصفحة
... dressing Tin, 219. Description of a stamping mill, its tackle, and appurtenances, 220. The pit and slime pit-The buddie and buddlin , 221. Toffing and packing, and Diliueing, 22 2. Pit-wor s and shimpings, 223. Of the crop and rough Tin ...
... dressing Tin, 219. Description of a stamping mill, its tackle, and appurtenances, 220. The pit and slime pit-The buddie and buddlin , 221. Toffing and packing, and Diliueing, 22 2. Pit-wor s and shimpings, 223. Of the crop and rough Tin ...
الصفحة ix
... dressing, and cleansing them for the furnace. The former from the smallness-of its particles, and extreme hardness of the stone in which it .is frequently sound, requires to be triturated' or pulverized as finall as the finest sand, to ...
... dressing, and cleansing them for the furnace. The former from the smallness-of its particles, and extreme hardness of the stone in which it .is frequently sound, requires to be triturated' or pulverized as finall as the finest sand, to ...
الصفحة 41
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الصفحة 42
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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 |
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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