Mineralogia Cornubiensis: A Treatise on Minerals, Mines, and Mining: Containing the Theory and Natural History of Strata, Fissures, and Lodes, with the Methods of Discovering and Working of Tin, Copper, and Lead Mines, and of Cleansing and Metalizing Their Products; Shewing Each Particular Process for Dressing, Assaying and Smelting of Ores. To which is Added, an Explanation of the Terms and Idioms of MinersD. Bradford Barton Limited, 1778 - 331 من الصفحات |
من داخل الكتاب
النتائج 1-5 من 49
الصفحة
... operation under - ground . This is intended to ex- plain the feveral parts of a Mine , and their dependency on each other ; and to evince that fuch contingencies must be in all Mines , although varied in their fituations according to ...
... operation under - ground . This is intended to ex- plain the feveral parts of a Mine , and their dependency on each other ; and to evince that fuch contingencies must be in all Mines , although varied in their fituations according to ...
الصفحة
... beft , 117. Shape and fize - manner of holding the rod - the mind must be indifferent , or the rod will not anfwer , 118 . Sweat and animal excretions hinder its operation - Of willow rods , rods , & c . - The rod will not CONTENTS .
... beft , 117. Shape and fize - manner of holding the rod - the mind must be indifferent , or the rod will not anfwer , 118 . Sweat and animal excretions hinder its operation - Of willow rods , rods , & c . - The rod will not CONTENTS .
الصفحة
... operation explained - Of refining the impure Copper , 262. Often repeated - Of reducing the fcoria for refining the Prill - A nice operation , 263. To affay Copper Ore the regule way , 264. How to calculate the value of | L I of a ton ...
... operation explained - Of refining the impure Copper , 262. Often repeated - Of reducing the fcoria for refining the Prill - A nice operation , 263. To affay Copper Ore the regule way , 264. How to calculate the value of | L I of a ton ...
الصفحة
... operation explained , 268. To affay Tin Ore -Of feparating the fcoria of Pillion Tin , 269. To affay Cobalt , by the ... operation furnace , and repeated fmeltings therein , 274. Of the Metal calciner , and the operation there Of the ...
... operation explained , 268. To affay Tin Ore -Of feparating the fcoria of Pillion Tin , 269. To affay Cobalt , by the ... operation furnace , and repeated fmeltings therein , 274. Of the Metal calciner , and the operation there Of the ...
الصفحة 1
... operations , requires fo much accurate labour , found learning , and folid judgment , that as it would appear prefumptuous in me to obtrude any particular theory of my own , I fhall only offer my opinion in the following sheets , with ...
... operations , requires fo much accurate labour , found learning , and folid judgment , that as it would appear prefumptuous in me to obtrude any particular theory of my own , I fhall only offer my opinion in the following sheets , with ...
المحتوى
i | |
ii | |
iii | |
viii | |
1 | |
3 | |
9 | |
16 | |
124 | |
130 | |
136 | |
137 | |
144 | |
166 | |
173 | |
179 | |
21 | |
23 | |
29 | |
33 | |
35 | |
43 | |
44 | |
51 | |
57 | |
63 | |
71 | |
72 | |
80 | |
87 | |
97 | |
100 | |
106 | |
192 | |
201 | |
204 | |
213 | |
215 | |
222 | |
231 | |
238 | |
247 | |
253 | |
259 | |
271 | |
279 | |
286 | |
288 | |
292 | |
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
Adit adventurers affay alfo almoſt alſo anſwer Antimony Aqua Fortis becauſe beſt black Tin bottom buddle cafe calcination called caufe cauſe colour confequence confiderable Copper Cornwall courſe Cryſtal depth diffolved diſcovered diſcovery diſtance dreffing earth eaſily expence facks faid falts fame fathoms feet feldom feparated feven feveral fhall fhillings fhould fhovel fide Fiffures fink fire firft firſt fituation fize fmall folid fome fometimes foon fouth fteam ftrata ftratum fubject fuch fufficient funk fuppofe furface Goffan Gold ground hundred inches inftance Iron itſelf laft lefs leſs likewife Lode meaſure Metal metallick Mineral Mines moft moſt muft Mundick muſt neceffary obferved occafion particles perfons petrifactive pounds prefent purpoſe quantity raiſed reaſon Redruth refpect rich Semi-metals ſeparate Shaft ſhall Shode Silver ſmall ſome ſtate Stones thefe themſelves theſe thofe thoſe thouſand Tin-ftuff Tinners tons underlie uſed vein waſhed weft white Tin Whym