192 
ME. T. GEAHAM ON LIQUID DIFFUSION APPLIED TO ANALYSIS. 
Table V. — Diffusion in Alcohol of 10 per cent, solutions of Iodine and of Acetate of 
Potash in seven days. 
Number of stratum. 
Iodine at 14°. 
Acetate of potash, 
at 14° to 15“ 
1 
•028 
•055 
2 
•033 
•057 
3 
-046 
•061 
4 
•038 
•063 
5 
•037 
•064 
6 
•039 
•066 
7 
•081 
•070 
8 
•3 43 
•071 
9 
•263 
•072 
10 
•417 
•095 
11 
•637 
•285 
12 
•936 
•619 
13 
1-235 
1-157 
14 
1-606 
1-907 
15 and 16 
4-561 
6-358 
10-000 
lO-OO.O 
Table V. Us . — Diffiasion in Alcohol of a 10 per cent, solution of Resin, for seven days, 
at 14°'5. 
Number in stratum. 
Diffusate, in grammes. 
1 
•017 
2 
•017 
3 
•018 
4 
•017 
5 
•019 
6 
•020 
7 
•022 
8 
•024 
9 
•*025 
10 
•080 
11 
•210 
12 
•498 
13 
•992 
14 
1-700 
15 and 16 
6-341 
10-000 
The experiments were conducted in the absence of light, and there is no reason to 
beheve that the iodine acted chemically upon the alcohol. The diffusion is more 
advanced in the iodine than in the acetate of potash, but in both is moderate in amount, 
confirming the early experiments with phials, which appeared to show that the diffusion 
process was several times slower in alcohol than in water. The small quantities of 
iodine found in each of the six superior strata are nearly equal, and were no doubt 
accidentally elevated by the mobility of this fluid, arising from its high dilatability by 
heat compared with that of water at the same low temperature. The dijQPiision may be 
