436 C. L. Sjpeyers — Molecular Weights of Liquids. 



phases have disappeared. The extremities of the broken line 

 of IY mark the compositions of these solutions. I have added 

 plots Y and YI taken from an earlier article.* They fit in 



03 

 bo 



P4 



IVV 























90 



f 



/UX. 



















jJCL 





















SO 



70 



60 



vo 



I 





JP~ 

















K 

























X 





















/ 

 / 

 / 











I 









/ 



/ 















I 







s 

 s 



* 













I 







• 



s 













20 

 10 









s 

 s 



/ 



* 



















s 

 / 

 / 

 / 



s 



















V 





















JO 



ZQ 



3o 



Activity factor a > 



I. InCHsI. II. In(C 2 H 5 ) 2 0. III. In (CH 3 ) 2 C:CH(CH 3 ). 



IV. InC 5 H 12 . f°=18'l°. 



V. In OCI4 £°=34.8. VI. In (C 2 H 5 ) 2 £=16.2°. 



very well with these of Konowalow and together with YI of 

 figure 2 show how characteristic of two coexistent phases the 

 big jump in the activity factor is. 



*1. c 

 December 11, 1903. 



