'M 



Chemistry. — "The Temperature-coefficients of the free Surface- 

 energy of Liquids, at Temperatures from — 80° to 1650° C. 

 III. Measurements of some Aromatic Derivatives." Bj Prof. 

 Dr. F. M. Jaegkk and M. J. Smit. . (Communicated by Prof. 

 P. V. Rombukgh). 



§ 1. In continuation of our measurements of organic liquids, the 

 data obtained in the study of a series of aromatic compounds, are 

 reviewed here in tables, quite in the same way as in our former 

 communications^). This series of substances includes the following terms: 



Nitrobenzene; ortho-Nitrotoluene ; Aniline; Dimethylaniline ; ortho- 

 Tohiidine ; Thymol; 3J ethyl-, Ethyl-, and Benzyl- Be7izoates ; Salicylic 

 Aldehyde; Acetophenone, and the non-aromatic compound: a-Cani- 

 pholenic Acid. 



With respect to the determination of the specific gravities and the 

 purification of the studied substances, we can refer to the preceding 

 communication ; the diagrams also have the same significance, as 

 indicated there. 



§ 2. Aromatic Derivatives. 



I. 



1) F. M. Jaeger and M. J. Smit, Preceding communication, (1914). 



