METALLURGY. 255 



at least in the course of the last century this metal was brought 

 from thence to Europe. Jungius mentions the importation of zinc 

 from India, in 1674*; a metal of this kind, under the name of 

 tutenag, is still brought from thence, which must be carefully dis- 

 tinguished from the compound metal of that name. G. E. Van 

 Lohneiss tells us, in 1617, that a lonu time before, zinc had been 

 collected by fusion at Goslart. It has been long used to form 

 orichalcum from the ores of zinc, by the addition of copper; but 

 it does not yet appear at what time this art was invented. Pliny 

 makes mention of the orichalcum, as also of three species of Co. 

 rinthian vases, one of which is yellow, and of the nature of gold J. 

 Erasmus Ebner, of Noremberg, in the year 1550, was the first 

 who used the cadmia of Goslar for this purpose. In the year 

 1721, Henckel indeed mentioned that zinc might be obtained from 

 lapis calaminaris by means of phlogiston, but he conceals the me. 

 thod . The celebrated Anton. Van Swab, in 1742, extracted it 

 from the ores by distillation, at Wesferwick, in Dalecarlia||. It 

 was determined to found a work for the purpose of extracting 

 larger quantities of this semi. metal ; but afterwards, for various 

 reasons, this project was laid aside: therefore the illustrious Marg- 

 graf, not knowing what had been done by the Swedish minera- 

 logists, in the year 1746 published a method of performing this 

 operation, which he had discovered himself H. It is not known 

 how zinc is extracted in China. A certain Englishman, who seve. 

 ral years ago took a voyage to that country for the purpose of 

 learning the art, returned safely home indeed, and appears to hare 

 been sufficiently instructed in the secret, but he carefully Concealed 



* De Mineralibus. 



+ Bericbt Von. Bergvercken. 



J Hist. Nat. XXX. C. II. 



$ Pyritologia Hcnckel's words deserve to be quoted ; I take them from 

 the French translation of the Pyritologia, p. 295. On fait, par exewple, 

 avec la calami ne, non seulemcnt du fer, il est vrai en petite quanthc, niaii 

 encore une ties-grande qunntitc de zinc, que Ton obtient non-seulement eu 

 lui presentant le corps avec leqoel il peut s'incorporer, c'cst-4-dire le cuivrc 

 qui est son ainian, mais encore ce demi-metal se raontre simplement par 1'ad- 

 dition d'une mat ierc grasse qui metallise; il faut seniemeut, pour cviter que 

 ce phenix ne se rrduise en cendre, emptcher qu'il ne se brule, et observer le 

 terns et les circonstances. 



y Elogium magni hujus metallurgy ceram II. Acad. Stock, recifatum. 



1 Mem. de I'Acad. de Berlin. 



