I N D E X. 



Fraxlnella exhales inflammable air, p, 146. 



Fruit. All fruits have a poifonous exhalation by day 

 and by night, p. 58— Foifon common air at all times, 

 p. 58. exp. 75 — 91. — Their noxious effect greater than 

 that of flowers, p. 59. — Their deleterious effect che. ked 

 by the fun, p. 60. and by cold weather even in the 

 night, p. 288. exp. 87. — Effect of the light upon fruit, 

 p. 88. exp. 82—87. 



Fulminating air. Inflammable air from metals rendered 

 fuch by plants, p. 106, exp. 267. 



G. 



God. His eiciftence deduced from the contemplation of 

 nature, p. 140. 



Grafs. Its air of the day examined, exp. 1. — Its air of 

 the night examined, exp. 36. — Contaminates common 

 air by night, exp. 39. — Its air of the night and day 

 together examined, p. 51. 



Green Vegetable Matter \ where to be found in abundance, 

 p. 91. — Difcovered by Dr. Prieftiey, p. 89. — Its na^ 

 ture inveftigated, ibid. — Serves as an index of the rea- 

 dinefs of leaves to yield dephlogifticated air, p. 8i ? 



H. 



Hales, (Dr.) his difcqvenes on air, p. in. 



Heat fpoils the air of vegetables, p. 1 1 £. — Even that of the 

 fun fpoils air without the affiftance of vegetables, p. 274. 

 —The degree of heat at the time thefe experiments were 

 made, p. 288. — Is by no means the caufe of plants 

 yielding dephlogifticated air, p. 28. but rather ob- 

 ftructs this operation of the vegetables, p. 292. 



5 Helmtmtf 



