OSMOTIC PRESSURES DERIVED FROM VAPOUR-PRESSURE MEASUREMENTS. 349 
Cane Sugar at 30° C. 
Date. 
Weight 
concentration. 
Po/pi- 
logc po/pl 
corrected to 
standard 
weight con¬ 
centration 
and 30° C. 
Osmotic 
pressure. 
Atmospheres. 
Mean 
osmotic 
pressure. 
Atmospheres. 
Standard weigt 
Jan. 25, 1916. 
June 24, 1916 .... 
July 13, 1916 .... 
it concentration = 34'00 
33-941 1-01947 
33-965 1-01942 
33-980 ; 1-01945 
rr. sugar to 1 
0-01931 
0-01926 
0-01927 
00 gr. of w 
26-56 
26-49 
26-50 
a ter. 
26-52 
Standard weight concentration = 81'20 gr. sugar to 100 gr. water. 
Jan. 25, 1916 . . . . | 81*193 | 1*05379 | 0-05239 | 72-36 
Standard weight concentration = 141 '00 gr. sugar to 100 gr. water. 
July 13, 1916 . . . . | 141-257 | 1*10865 | 0-10289 | 143-11 
Standard weight concentration = 183'0 gr. sugar to 100 gr. water. 
Jan. 19, 1916 . 
June 24, 1916 . . . . 
182- 737 
183- 160 
1-15240 1 0-14211 
1-15277 0-14201 
198-70 
198-56 
198-63 
a -Methyl Glucoside at 30° C. 
Date. 
Weight 
concentration. 
lo ge Po/pi- 
corrected to 
1 : standard 
^ 1 ‘ weight con¬ 
centration and 
30° C. 
Osmotic 
pressure. 
Atmospheres. 
Mean 
osmotic 
pressure. 
Atmospheres. 
Standard weight concentration = 
May 12, 1916 .... 63‘810 
„ ‘ 19, 1916 .... 63-810 
June 9, 1916. 63-818 
Standard weight concen 
Dec. 4, 1915 .1 90-049 
| 
64'00 gr. a-methyl glucos 
1-07210 0-06986 
1-07222 0-06997 
1-07203 0-06977 
Ltration = 9O'00 gr. to 10 
1-10748 0-10203 
side to 100 < 
96-37 
96-53 
96 • 24 
0 gr. water. 
141-13 
rr. water. 
1 
96*38 
