368 PEOCEEDINGS OP THE AMERICAN ACADEMY. 



of the components is solid, and to the instances where there is an 

 increase instead of a decrease of solubility. 



The results of this paper may be summarized briefly as follows. 



1 . The equilibria between two partially miscible liquids, and a con- 

 solute liquid follow the Mass Law. 



2. There are four sets of equilibria corresponding to four different 

 series of solutions. 



3. If the two liquids are practically non-miscible, there are only two 

 sets of equilibria. 



4. The reacting weights of the liquids studied were not functions of 

 the concentration, — possibly with one exception. 



5. There is a fundamental difference between the solute and the 

 solvent. 



6. The solubility curve of a substance in a varying mixture of two 

 liquids at constant temperature has a break. 



