EXPLANATION OF PLATE 17 

 Figures of Folymastix bufonis (Dobell) 



Fig. 10. Early prophase of division, with outgrowth of two new flagella. 



Fig. 11. The same. 



Fig. 12. Prophase, with chromatin condensed into two pairs of granules. 



Fig. 13. Equatorial plate formation and pole plates occupying the position 

 of eentrosomes. 



Fig. 14. Metaphase, showing the two pairs of chromosomes moving apart. 



Fig. 15. The same. Note parabasal rhizoplasts. 



Fig. 16. Telophase, with coalescence of pole plates and chromosomes. 



Fig. 17. The same, with the beginning of the formation of the new nuclear 

 membranes. 



Fig. 18. The same. 



Fig. 19. Beginning of the reorganization of the nuclei; complete disap- 

 pearance of the old nuclear membrane. 



Fig. 20. Beginning of division of the cytoplasm; parabasal not yet divided. 



Fig. 21. The same, with the separation of the parabasal body into two 

 daughter parabasal bodies. 



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