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cohol, except in the dilute cell where it is highest in ethyl alcohol. 
The corresponding values in the aqueous solutions are lower 
than in either of the other solvents. Comparing the activity 
ratios and likewise the free energies of dilution for similar cells 
in the separate solvents, both are found to decrease as the mole- 
cular weight of the solvent increases. 
Physical Chemistry Laboratory, 
The State University of Iowa. 
