18 ART. 12. — II. HIROBE : ON THE FUSION SURFACES OF THE 



where 



j) is the weight of phenol added, 



P is the number of phenol molecules calculated as CeHcO, 



N is the number of naphthalene molecules, 



X is the empirical molar fraction of naphthalene calculated 

 with phenol as CgHgO, 



t, Jl, X, n have the same meaning as table 1. 



The fusion curve observed by T. Yamamoto'^ coincides fairly 

 with ours except at a few points. 



'J'he data in the two foregoing tables give the boundary 

 curves for the fusion surface with naphthalene as the solid phase. 



TABLE 3. 



Fusion Curve No. 2. 



Naphthalene-chlorobenzene-plienol. Solid pliase : nai)hthalene. 



1) See the foregoing article. 



