(82 ) 



§ 4. I give in the following tables the temperatures observed 

 etc.^) Next to my data are placed those of Bomer as far as he has 

 published them. The temperatures in [J will be discussed more in 

 detail later on. 



^ 5. Most striking with these remarkable substances are the splen- 



1) It should be observed that in these substances three temperatures should be 

 considered, namely 1. transition: solid —^ anisotropous-liquid ; 2. transition: aniso- 

 tropous-liquid — > isotropous-liquid ; 3. transition : solid — > isotropous-liquid. 



This distinction has been retained, particularly on account of the cases of labile, 

 liquid crystals discovered here. 



