Encyclopædia Britannica: Or, A Dictionary of Arts, Sciences, and Miscellaneous Literature, 11. köide,2. osaColin Macfarquhar, George Gleig A. Bell and C. Macfarquhar, 1797 |
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Page 446
... Copper . Such $ 1. COPPER is found under ground in three diffe- rent forms : 1. Native or virgin copper diverfely ra- mified , which is much more rare than native filver . This native copper is not fo ductile as copper purified by ...
... Copper . Such $ 1. COPPER is found under ground in three diffe- rent forms : 1. Native or virgin copper diverfely ra- mified , which is much more rare than native filver . This native copper is not fo ductile as copper purified by ...
Page 449
... Copper . Effaving of Ores of Copper . We may remark ,. Sect . IV . Effaying iron , which chiefly abforbs femimetals , fulphur , and ar- of Ores of fenic , and the deftruction of it is at the fame time ac- Copper , celerated by them ...
... Copper . Effaving of Ores of Copper . We may remark ,. Sect . IV . Effaying iron , which chiefly abforbs femimetals , fulphur , and ar- of Ores of fenic , and the deftruction of it is at the fame time ac- Copper , celerated by them ...
Page 467
... copper : but Copper . if the iron be in too large a proportion , it prevents the lead from uniting with the copper . These two phe- nomena depend on the fame cause , which is , that lead and iron cannot unite . Frequently copper ores ...
... copper : but Copper . if the iron be in too large a proportion , it prevents the lead from uniting with the copper . These two phe- nomena depend on the fame cause , which is , that lead and iron cannot unite . Frequently copper ores ...
Common terms and phrases
alfo alſo animalcule antimony appear arfenic becauſe body brafs cafe calcination called caufe cauſe colour confequence confiderable confifts copper Cortes diftinct diſcovered diſtance divifions earth exiftence exiſtence extenfion faid fame fays fcrew fecond feems feen fenfation fenfe fent feparated feven feveral fhall fhould fide filver fimilar fimple fingle firft firſt fituation fize flider fmall folar folid fome fomething fometimes foon fore ftate ftill ftones fubftance fubject fuch fufficient fufion fulphur fuppofe furnace fyftem glafs himſelf ideas impoffible inches inftance inftrument iron itſelf kind laft lefs likewife litharge magnifier matter meaſure metals Mexicans Mexico micrometer microſcope mind moft Montezuma moſt motion muft muſt nature neceffary obferved object occafion paffing pelvis perceive perception perfon philofophers poffible pofition prefent purpoſe pyrites quantity reafon refemblance refpect reft ſmall ſome ſpace Spaniards thefe themſelves theſe thing thofe thoſe tion tube uſed uterus veffel