EXPLANATION OF PLATE III. 



FIG. 23. Late anaphase. Centrosome divided. Accessory lagging. 



FIG. 24. Late anaphase. Spindle between the accessory and the ordinary chro- 

 mosomes. 



FIGS. 25, 26 AND 27 show conditions of the semiresting stage. Accessory has its 

 own vesicle. The ordinary chromosomes are vesicular in 25 and 26. 



FIGS. 28 AND 29. Polar views of second spermatocyte spindle. Chromosomes 

 crowded. 



FIG. 30. Side view of second spindle. 



FIG. 31. Polar view of second spindle. Chromosomes not so crowded. 



FIGS. 32 AND 33. Anaphases of second spindle ; 32 shows accessory. 



FIGS. 34 AND 35. Polar views of anaphases of second spindle. The twin cell of 

 34 shows the other part of the divided accessory. 



FIG. 36. Ovocyte of Scapteriscus. Synapsis stage. 



