OF THE SYSTEM NAPHTHALENE-PHENOL. 23 



Resume. 



1. The fusion curve of naphthalene in the system naphtha- 

 leiie-phenol has been experimentally determined. 



2. The peculiar form of this curve has been interpreted 

 as due to association of phenol. 



3. The equilibrium constant of this association has been 

 expressed as a function of temperature, the heat of association 

 being also determined. 



4. The fusion curve of phenol has also been studied ex- 

 perimentally and an attempt has been made to give its theoretical 

 interpretation. 



This study has been undertaken and carried out under the 

 guidance of Prof. Ikeda, to whom my best thanks are due. 



The Chemical Institute of the Science College, 

 the Imperial University of Tokyo. 



