Mineralogia CornubiensisРипол Классик, 1778 - 331 من الصفحات |
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الصفحة
... soon know how to manage in assaying Cobalt, by the mode presented to his view in this chapter. The last and grand object, is the manusactor of Tin and Copper Ores into their respective Metals 5 and l have set sorth, as succinctly and ...
... soon know how to manage in assaying Cobalt, by the mode presented to his view in this chapter. The last and grand object, is the manusactor of Tin and Copper Ores into their respective Metals 5 and l have set sorth, as succinctly and ...
الصفحة iii
... soon Confirmed their 'conjectures ; and' the beautiful colour, and innocent properties of the Metal, no doubt rendered it as valuable in their effimation as Silver and Gold ; until, by great abundance, which renders all things cheap, it ...
... soon Confirmed their 'conjectures ; and' the beautiful colour, and innocent properties of the Metal, no doubt rendered it as valuable in their effimation as Silver and Gold ; until, by great abundance, which renders all things cheap, it ...
الصفحة viii
... soon after to their loss and detriment -, they nerertheless pursue their object, under the most unpromising circumstances, with unremitting ardour, patience, industrzr, and resolution, scarcely parallel 'in any other unfortunate undern ...
... soon after to their loss and detriment -, they nerertheless pursue their object, under the most unpromising circumstances, with unremitting ardour, patience, industrzr, and resolution, scarcely parallel 'in any other unfortunate undern ...
الصفحة 4
... soon after the creationos the world. Tin Ore will peculiarly evince the jushie'ss os this conclusion;sor it is frequently sound, in its richest and purestfiatc, in large s ots and bunches in blocks os stone os the most harde-ned ...
... soon after the creationos the world. Tin Ore will peculiarly evince the jushie'ss os this conclusion;sor it is frequently sound, in its richest and purestfiatc, in large s ots and bunches in blocks os stone os the most harde-ned ...
الصفحة 16
... soon after the autumnal equinox; otherwise, which is frequently the case, they expose themselues to a great expence, disappointrmnt, and loss. 0111- Very deep Mines are subject to Waterv from both the sources before mentioned ; for in ...
... soon after the autumnal equinox; otherwise, which is frequently the case, they expose themselues to a great expence, disappointrmnt, and loss. 0111- Very deep Mines are subject to Waterv from both the sources before mentioned ; for in ...
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