( 151 ) 



of A found experimentally, and see if the values found in this way 

 are about the double of those of the (absolute) melting temperatures ^). 



1,95 average 



The values of 2\ are calculated from 2\ = ax T„ where 1\ = 430^, 

 being the critical temperature of the solvent SOj. 



So we find really a value in the neighbourhood of 2 for the ratio 

 between ciitical temperature and melting temperature. We call attention 

 to the fact that 2,0 is found as mean value for this ratio for bl- 

 and tri-atomic substances; for multi-atomic-substances this mean 

 value rises to 2,3. There are, however, substances, where the ratio 

 mentioned falls to 1,4 or rises to 3,5. The values calculated by 

 means of the formula h =z 6 {6 — 1) are therefore in any case not 

 in contradiction with what experience teaches us. 



In the second place we shall consider in the same way five 

 substances, which have been examined by Büchner only recently. 

 (See Thesis for the doctoivate, p. 128—129). The solvent was CO^, 

 of which T, — 304°. 



2,14 average 



1) See my paper iu the BoLTZJUANN-Festschrift (1904), p. 3l2!2— 324. 



