

Anatyfis of the Am 



l 77 





Experiment LXIX. 



From a quarter of a cubiek inch of An- 

 timony, I obtain'd 28 times its bulk of air. 

 It was diftillcd in a glafs retort, becaufe it 

 will demettalize iron. 



Experiment LXX. 



I procured a hard, dark, gray Tyrites, a 

 mineral Jubjlance, which was found 7 feet 

 under ground, in digging for fprings on 

 Walt on- heathy for the fervice of the Ri^ht 

 Honourable the Earl of Lincoln, at his beau- 

 tiful feat at Oat lands in Surrey 3 this mine- 

 ral abounds not only with fulphur, which 

 has been drawn from it in good plenty 

 but alfo with faline particles, which 

 moot vifibly on its furface. A cubiek inch 

 of this mineral yielded in diftillation *s cu- 

 biek inches of air. 



Experiment LXXI. 



■Y * 



Half a cubiek inch of well decrepitated 

 fea-falt mixt with double its quantity of 

 calx of bones generated 32 times its bulk 

 «» air : It had fo great a heat given it, that 











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