PROFESSOR GRAHAM ON OSMOTIC FORCE. 
209 
Table XVI. — Solutions in Osmometer F of double membrane for five hours. 
Salt in osmometer. 
Rise in 
millimeter 
degrees. 
Temperature, 
Fabr. 
Phosphate of soda, 1 per cent 
382 
63° 
Same, 1 per cent 
311 
56 
Same, 0*1 per cent. 
205 
55 
Same, (hi per cent 
218 
58 
Carbonate of soda, Ol per cent 
294 
56 
Same, 0-1 per cent 
254 
58 
Same, OOl per cent 
50 
57 
Same, 0-01 per cent 
39 
65 
Same, 1 per cent 
306 
58 
Same, 1 per cent 
337 
64 
Phosphate of soda, 1 per cent 
193 
62 
Same, 1 per cent 
186 
61 
Serum of ox-blood, undiluted 
39 
59 
Same 
34 
61 
Same, diluted with equal vol. of water 
31 
61 
The phosphate and carbonate of soda, when alternated in the same osmometer, 
show considerable steadiness in their respective rates of osmose. 
The inferior osmotic quality of serum is remarkable, considering the alkalinity ol 
that fluid. The loss of osmose in serum is due, I believe, to the presence of chloride 
of sodium. The latter substance possesses an extraordinary power of reducing the 
osmose of alkaline salts, which was observed in a variety of circumstances, but which 
it will be sufficient to illustrate by the following series of experiments in an albumen 
osmometer. 
Table XVII. — Solutions in Osmometer N of albuminated calico for five hours. 
Salt in osmometer. 
Rise in 
millimeter 
degrees. 
Diffusate in 
grammes by 
analysis. 
Same, by 
alkalimetry. 
Previous 
maceration. 
Hydrostatic 
resistance. 
Tempera- 
ture, 
Fahr. 
days. 
min. 
O 
Carbonate of soda, 1 per cent 
139 
0-157 
0-092 
1 
3 
57 
Same, 1 per cent 
150 
0-156 
0-106 
1 
6 
59 
Same, 2 per cent 
141 
0-242 
1 
6 
65 
Same, 4 per cent 
143 
0-570 
1 
8 
62 
Same, 10 per cent 
204 
1-562 
1-450 
1 
12 
60 
Same, 1 0 per cent 
163 
1-432 
1-340 
3 
6 
56 
Same, 1 per cent 
138 
0-216 
0-147 
1 
6 
59 
Same, 1 per cent 
136 
0-198 
0-156 
1 
3 
60 
Same, 0-i per cent 
188 
0-005 
1 
10 
61 
Same, 0-1 per cent 
179 
1 
6 
63 
Carbonate of soda 0-1 per cent. + 1 
oo 
2 
6 
63 
chloride of 3oda 1 per cent j 
o/C 
Same -f- same 
36 
1 
6 
63 
Chloride of sodium. 1 per cent 
25 
0-384 
1 
6 
64 
Same, 1 per cent 
18 
0-325 
1 
3 
65 
Carbonate of soda 1 per cent. + chlo- 1 
1 
5 
63 
ride of soda 1 per cent J 
Same + same 
56 
3 
8 
56 
Carbonate of soda, 1 per cent 
157 
0-190 
0-164 
1 
6 
55 
Same, 1 per cent 
163 
0-212 
0-185 
1 
4 
58 
Same, 0-1 per cent 
152 
1 
20 
56 
Same, 0-1 per cent 
152 
1 
20 
58 
2 E 
MDCCCLIV 
