INDEX. 



* % * p. refers to the number of the Pages; and exp. t& 

 thac of the Experiments. 



A, 



aC I Z> S, mineral acids convertible into one another, 



p. 120. 



JEthiops mineral, method to make it readily, p. isr. 



Air is a very changeable fubftance, p. 107. May become 

 afolidbody, and vice verfa, p. 1 1 1. — Bad air is cor- 

 rected by plants, p. 63. — How it exifts in bodies, p. 

 122. — Phlogifticated or bad air fpecifically lighter thara 

 common air. Final caufe of it, p. 52, 65.— How vs 

 examine common air, p. 155, 276. — How to examine 

 dephlogifticated air, p. 159. — Cautions to be obferved 

 in the experiment, p. 161. — Why the refuk of this 

 experiment is inconftant, and how to make it conftaat, 

 p. 284. — 'Air bubbles, fee Bubbles, Air of our fkia 

 examined, p. 129. 



Apples contaminate common air, exp. 81, even in the 

 fun-mine, exp. 82, 86. — Air of them examined,, p» 



US* 



Apple-tree* the air of its leaves examined, exp. 1$, 19. 



Aquatic-plants, their dephlogi'ticated air examined, p. 

 42, exp. 5, 54. Have a particular faculty of correct- 

 ing bad air, p. 40. 



Art!" 



