2O2 J. THOMAS PATTERSON. 



PLATE V. 



FIG. 19. This shows a capsule about to be set free into the parenchyma. The 

 eggs exhibit the condition which immediately follows the disappearance of the 

 aborting spindle. Each egg has four chromosome-vesicles, and in the one on the 

 left the centrosome is present. Lying just above this newly formed capsule is 

 another in the process of formation. Only one of the ova shows in the section, and 

 in it the centrosome has divided and the aster is present, thus anticipating the forth- 

 coming aborting spindle. X 993. 



FIG. 20. The anaphase stage of the first polar spindle. X 2,394. 



