Encyclopaedia; or, A dictionary of arts, sciences, and miscellaneous literature; constructed on a plan, by which the different sciences and arts are digested into the form of distinct treatises of . clepedie alTure us, that our brafs is a very re- p. invention (a). It appears, , from PlinysNat. Hill. lib. x.\xiv. § 2. and from the-concurringtellimony of other writers, that orichalcum was not apure or original metal : but that its bafis w^as copyer,which the Romans changed into orichalcum by meansof caJmla, a fpecies of earth which they threw uponthe copper, and which
Encyclopaedia; or, A dictionary of arts, sciences, and miscellaneous literature; constructed on a plan, by which the different sciences and arts are digested into the form of distinct treatises of . clepedie alTure us, that our brafs is a very re- p. invention (a). It appears, , from PlinysNat. Hill. lib. x.\xiv. § 2. and from the-concurringtellimony of other writers, that orichalcum was not apure or original metal : but that its bafis w^as copyer,which the Romans changed into orichalcum by meansof caJmla, a fpecies of earth which they threw uponthe copper, and which is abforbed. It has indeedbeen contended that the cadniia of Pliny was nativearfenic, an opinion which fcarcely merits confutation,but which muft appear extremely groundlefs, when wereflca that it is impofiible to make either brafs or cop-per from arfenic, and that Pliny exprefsly calls it which brafs was made. The tellimony of Am- brofe (a) Art Orichalque— The veffels here called brazen, after ancient authors, cannot have been of the rna- ,terials our prefent brafs is compcfed of; the art of making it is a modern diicovery. See Ljiis^ons Ancient Egypt, ?^. S^ Plate
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Keywords: ., bookcentury1700, bookdecade1790, bookidencyclopaedi, bookyear1798
