PAPACY SXc0- 
ILLUSTRATING THE PAPER OF BRADNEY B. GRIFFIN, p. 163. 
Fic. 13. Fully formed first cleavage figure, showing centrosomes already 
divided and surrounded by the darker area, nearing the periphery of the 
centrosphere. 
Fic. 14. Commencement of anaphase. Centrosomes or periphery of cen- 
trosphere. 
Fie. 15. Stage just previous to mid anaphase, minute amphiaster forming 
about the centrosomes. 
Fic. 16. Mid anaphase, amphiaster elongated. 
Fic. 17. Vesicles previous to fusion. 
Fia@. 18. Vesicles fusing. 
