86 PHYSICAL PROPERTIES AND COMPOSITION 



Here the molecular refraction is calculated from the 

 dielectric constant. An indication as to molecular weight 

 is consequently given and the quotient accordingly falls to 

 about i-i for the probably associated liquids, water, methyl, 

 alcohol, and acetic acid. 



1 This quotient is much more constant when calculated from A in 

 Cauchy's formula (Guye, Bull, de la Soc. Chim. (3) 13. 34). 



