Mineralogia CornubiensisРипол Классик, 1778 - 331 من الصفحات |
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الصفحة
... sor my own part, _I_ want nosurther evidence of its properties than I have already obtained to fix my opiniort os its virtues. At least, the memoir is curious, and the subject deserves to be Furthcr enquired into. In the method-of ...
... sor my own part, _I_ want nosurther evidence of its properties than I have already obtained to fix my opiniort os its virtues. At least, the memoir is curious, and the subject deserves to be Furthcr enquired into. In the method-of ...
الصفحة
... sor affaying Cop er Ores by calcination, and by the regulc way, are both insai ible, is the operator will be attentive to his business. These processes are little known out of the Corniih assay offices, and have been too long kept ...
... sor affaying Cop er Ores by calcination, and by the regulc way, are both insai ible, is the operator will be attentive to his business. These processes are little known out of the Corniih assay offices, and have been too long kept ...
الصفحة
... sor, 73. Soft Grouan Stratum encloses, Tin Lodes, 73. SlatevKillas, fix sorts-The pale blue Killas most liltel)r For Lodes os rich and lasting qualities-Elvan, two serts, 74.. Moorstone or Granite-its composition-Five sorts of Moorstone ...
... sor, 73. Soft Grouan Stratum encloses, Tin Lodes, 73. SlatevKillas, fix sorts-The pale blue Killas most liltel)r For Lodes os rich and lasting qualities-Elvan, two serts, 74.. Moorstone or Granite-its composition-Five sorts of Moorstone ...
الصفحة
... sor traeing a Lode by' its Shodeu-Some Lodes yield no Shode; why-,- 128.- dees often-covered 'with a double or trehle shels als-he' effects-of the demonstrated by Shode upon the! Cornish Smara,-rzg,_ 130.. Discoveryz of' Lodes very ...
... sor traeing a Lode by' its Shodeu-Some Lodes yield no Shode; why-,- 128.- dees often-covered 'with a double or trehle shels als-he' effects-of the demonstrated by Shode upon the! Cornish Smara,-rzg,_ 130.. Discoveryz of' Lodes very ...
الصفحة viii
... their depth may prove unsavourable for some time after; sor it is experimentally true, that most Mine-s os considerable depthL though though vastly expensive, and the Mineral os less intrinsick worth, viii Isi-'N' T R O" D-T U U' T I-O *N.
... their depth may prove unsavourable for some time after; sor it is experimentally true, that most Mine-s os considerable depthL though though vastly expensive, and the Mineral os less intrinsick worth, viii Isi-'N' T R O" D-T U U' T I-O *N.
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