STUDY OF CELL MECHANICS 



461 



Discussion 



With his characteristic insight, Boveri realized that the pe- 

 culiar behavior of the monaster eggs was not to be considered 

 as disintegration phenomena, but that each feature was to be 

 found in normal cleavage. In the short paper already referred 

 to, he calls attention to the main points of similarity in the ex- 

 ternal behavior of the eggs, and Mrs. Boveri extended the com- 

 parison to the cell elements. An exact correspondence was 

 found throughout. 



Fig. F 



THE IOURNAX, OF EXPERIMENTAL~ZOOLOa Y, VOL. 24, NO. 3 



