INDEX. 



A. 



Acceleration, la\vof, explained, i. 217. 



Acetic acid, its* nature and properties, ii. 163, 164. 



Acetous fermentation, simple process of, ii. i85. 



Acids, canon of chemistry concerning their constitution, 

 ii. 43 their natures, kinds, and properties, 147 to 169. 



Acids contained in waters, ii. 258. 



Affinities, importance of the knowledge of, ii. 102. 



Affinity (chemical,) or elective attraction, explained, ii. 

 96 to ICO. 



Astronomical day, commencement of the, ii. 14. 



Air, properties of, i. 02 means of ascertaining its density, 

 66. 77 to 84 experiments to prove the elasticity of 

 the, 68 to 73 beautiful experiments to evince the 

 pressure of, 73 to 75 capable of being rarefied by 

 heat, 74 comparative density of the, 78 its degree 

 of expansion, being heated, ii. 6 1 compressibility of, 

 66. See also Atmosphere, and Pneumatics. 



Air-furnaces, chemical heat procured by, ii. 120. 



Air-gun, principle of this instrument, i. 77. 



Air-pump, invention and explanation of, i. 68. 



Albumen, what meant by, ii. 281 remarks on, 287. 



Alcohol, or ardent spirit, chemical account of it, con- 

 sidered as a compound combustible substance, ii. 209 

 curious phaenomena produced by its mixture with dif- 

 ferent acid?, 216, 217. 



o 2 



