34 AET. 12. IT. IITROBE ! ON THE FUSION SURFACES OF THE 



Here n is quite uiiknown. Moreover various sorts of associated 

 molecules may exist simultaneously in a solution, and the reactions 

 between them take place freely. Hence the actual relation may 

 be so complex that to make a reliable deduction from the data 

 obtained is impossible. Yet we have ventured to make some 

 calculations on the basis of a simple hypothesis. We have 

 assumed that in the temperature range of 80°-20°, only (CgHgO)3 

 and (CgHgO) exist, and other molecular associations may be 

 neglected. It is not excluded that in the higher temperature 

 (C6HgO)2 may exist also and in the lower (CgHgO)4, and even 

 in the temperature range under consideration molecular associa- 

 tions other than 3 (CgHgO) ;1 (CoHgO)3 may take place as a side 

 reaction. But we have ignored these to avoid too great a com- 

 plexity in the calculation. 



From the data given in Tables 2-8 S\ has been calculated 

 for each observation, in order to see whether it remains constant 

 for different concentrations at a- constant temperature. The calcu- 

 lation was done in the following manner. 



For the ideal or quasi-ideal solutions we have : 



In 





Where the symbols are the same as in the equation in page 17. 

 In the next place put 



9i = the actual number of molecules of phenol, 



iy=the empirical number of molecules of phenol calculated 



as (CgHgO), 

 A = the number of molecules of naphthalene, 

 B — the number of molecules of chlorobenzene. 



