Encyclopædia Britannica: Or, A Dictionary of Arts, Sciences, and Miscellaneous Literature, 11. köide,2. osaColin Macfarquhar, George Gleig A. Bell and C. Macfarquhar, 1797 |
From inside the book
Results 1-3 of 91
Page 433
... quantity is too small to compenfate for the expence of obtain- ing it . Laftly , the largest quantity of native gold is to be found in the fands of fome rivers . It is chiefly collected in hollows at the bottom of these rivers , and at ...
... quantity is too small to compenfate for the expence of obtain- ing it . Laftly , the largest quantity of native gold is to be found in the fands of fome rivers . It is chiefly collected in hollows at the bottom of these rivers , and at ...
Page 445
... quantity of ore defined to one furnace , about 30 quintals , is brought up to the top by wheel - bar- rows ; and being spread as even as may be , the proper quantity of falt and lime is lifted over it , and the whole turned with crooks ...
... quantity of ore defined to one furnace , about 30 quintals , is brought up to the top by wheel - bar- rows ; and being spread as even as may be , the proper quantity of falt and lime is lifted over it , and the whole turned with crooks ...
Page 470
... quantity of fuel , or the intenfity of the heat , must be suited to the greater or lefs fufibility of the ore . Sulphureous , and other ores eafily fufible , re- quire lefs fuel than ores difficultly fufible . In general , if the quantity ...
... quantity of fuel , or the intenfity of the heat , must be suited to the greater or lefs fufibility of the ore . Sulphureous , and other ores eafily fufible , re- quire lefs fuel than ores difficultly fufible . In general , if the quantity ...
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