PLATE 26 



Fig. 9, 10, and 11. The loops completed. 



Fig. 9. Pole view. The sphere lies above the nucleus. The twenty- 

 eight free ends in the vicinity of the sphere represent fourteen loops. 

 Zenker's fluid and phosphotungstic acid haematoxylin. 



Fig. 10. Lateral view. Zenker's fluid, iron-alum haematoxylin, and 

 orange G. 



Fig. 11. Section of spermatocyte in the loop stage. The loops are 

 cut twice. Fixed in Zenker's fluid and stained with iron-alum haematoxylin. 



Fig. 12. Complete cell from crushed preparation showing the begin- 

 ning of the split. Flemming's fluid and iron-alum haematoxylin. 



Fig. 13. " Strepsinema. " Only a small portion of the cell included 

 in the section. Gilson 's fluid, iron-alum haematoxylin, and orange G. 



Fig. 14. Prophase to first maturation division. Complete cell from 

 crushed preparation somewhat flattened. Flemming's fluid and iron- 

 alum haematoxylin. 



[528] 



