The I N D E X. 



, 2I5, 221. Proof for, 



how made 218, 220,feqq. 



In fdver 228, feqq. How 



procured from fiver, 234 



feqq. 



Gold -ore, rare, 26, 221 



Gold -pyrites, ivhat, 18 



Gur, what, 8$ 



H. 



TTOrn-ftone, what, 38 

 Horfe-fulphur, zcte, 



136 



Hut- fume, what, 174 



Hydroftatical-ballance, r*- 



tfwrij on, and ufeof, 364 



feqq. 



feqq. Iron in the pyrites 

 discovered by the magnet, 

 106. Hoiv much of ano- 

 ther metal it can bear, 

 without being unaffecled by 

 the magnet, 108. In 

 Plants, 230 feqq. 



Iron-pyrites, what, 18 



Iron-vitriol, how purged 

 frgm copper, 119. What, 

 283 



K. 



T7" I E S, what, 13 



**- Knauer, what, 40, 93 



Kneifs, what, 44 



Kupfer-leg, what, 179 



T R O N, univerfality of, 

 A 77. All fat earths adap- 

 ted to its generation, ib. 

 Comes nearefl to the na- 

 ture of inflammable earth, 

 ib. Affinity to copper, 78. 

 An ejfential part of py- 

 rites, 99 feqq. Eajily 

 turning to rujl, 100 feqq. 

 Eafily parting with its 

 fulphur, 1 1 . Refufmg 

 to amalgamate with quick- 

 J ilver ■, 102. Earth of, 

 highly coarfe 1 00. Proxi- 

 mately derived from the 

 umverfal , unprepared 

 earth, ib. Gener able from 

 all earths 102. Univer- 

 fality of in pyrites, 103 



Calaminaris, 

 187 



Lead-ftone, what, 343 



Leg, what, 179 



I APIS 



■" what, 



M. 



\f AGNESIA, what, 



* 16. Vitriolata, wto, 



20 



Magnet, difcovering iron in 



the pyrites, 106. Bears 



copper in iron, 115 



Marcafite, what, 13 feqq. 

 Melanteria, what, 280 

 Mineral ifation, the grand 



caufes of 2 08? 



Minerals, figures of, are 



their peculiar criteria, 29 

 MifpickeU 



