TAKING THE DENSITY OF VAPOUR OF VOLATILE LIQUIDS. 457 
Determination made by the other method gave :— 








if 
At 95°5°. 
Corrected vols. 
at 0° C. and 760 m. m. Grm. 
Cubic Cent. ; 
Air + ag Bye 823 217°68 weighing 3547 
Air, : ‘ : 182°21 : 2357 
35°47 > 1190 
Vapour density = 2-594. 
Ratio of vol. of air to vapour, about 5: 1. 
igi 
At 86°5° C. 
Corrected vols. 
at 0° C. and 760 m. m. Grm. 
Cubic Cent. 
Hydrogen + Acetic acid, . 228712 weighing 2618 
Hydrogen, : : : 167:95 i 0150 
60°17 2468 
Vapour density = 3°172. 
Ratio of vol. of hydrogen to vapour, 24 : 1. 
III. 
At 79:9° ¢. 
Corrected vols. 
at 0° C. and 760 m. m. Grm. 
Cubic Cent. 
Hydrogen + Acetic acid, . 147-07 weighing "0815 
Hydrogen, 3 , } 130:94 3} 0117 
16:13 : 0698 
.. Vapour density = 3°340. 
Ratio of vol. of hydrogen to vapour, about 8 : 1. 
TV 
At 62°5° C, 
Corrected vols. 
at 0° C. and 760 m. m. Grm. 
Cubic Cent. 
Hydrogen + Acetic Mae 237-60 weighing 0938 
Hydrogen, mn ; 223°15 . 0200 
14°45 ‘5 0738 
Vapour density = 3:95, 
Ratio of vol. of hydrogen to vapour, about 16:1. 
Vol. of H 
Temperature. divided by Vapour density. 
vol. of vapour. 
ie F ‘ 95°5° : ° 5 ; - 2°594 
Vi 86:5° ws, Diarit ein a 3-172 
III. : : 79-9° : 2 8 : - 3°340 
Va : J 62°5° i : 16 Z 7 3:950 
VOL. XXII. PART III. 6B 

