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Sli a 
in “gd refers to the number of the Pages ; “and - to 
oe Aer ‘that of the Experimon op : 
So ef eg hr Sok ie OE 
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A IDS, mineral acids convertible into one another, 
p- 120. 
LE thiops mincral, method to. make. it readily, p. 121. 
. Mir is a very changeable fub{tance, p. 107. -May become 
a folid aye and vice verfa, p. 111.—Bad air is cor- 
ed by plants, ps Gge— it exits in 1 bodies, Pe 
common air. Final « caulk Of 
- examine common air, p. 165, 276. —Eow to examine _ 
sa Re air, p. 159.—Cautions to be. sbieraed 
“Gn the experiment, p. 161.—Why the refule of this 
se gxpetinet is inconftant, and how to make it conftant, 
- p. 284.—Air bubbles, fee Bubbles. Air of our skin 
examined, p. 129. 
Apples contaminate common air, exp. Sr, even ie ors 
- fan-fhine, exp. 82, 86.—Air of bev = p- 
beat 
png the air of its leaves examined, = oa 59. 
Aquatic-plants, their dephlogi'ticated air examined, p- 
gz, exp. § 54 Havea particular faculty of correct 
ag airy P» 40» 
‘Mette 
