THE 



GALLERY 



OF 



NATURE AND ART. 



PART II, 



A R T. 



BOOK III. 

 Of METALLURGY, and the ARTS connected loith it. 



WAVING in the preceding part of this work treated of minera- 

 logy, and metallic mines, we shall devote the present book to a 

 few examples of the curious modes of working and mixing metals, 

 and the most important uses to which they are applied: 



CHAP. I. 



OF CALAMINE, BLENDE OR BLACK JACK, ZINC, AND 



BRASS. 



1 HE two principal ores of zinc are calamine and blende. The 

 Arabic word climia, or, as it is pronounced by some, calimia, 

 denotes the same substance which we call lapis calaminuris, cala. 

 mine, or calamy ; and hence Salmasius is of opinion, that they 

 judge very preposterously who would derive calamine from calaem, 

 an Indian word signifying, according to him, a species of metal 



