CELL DIVLSrON AND CELL DIFFERENTL\TION 



VERA DANCHAKOFF 



PLATE 1 



-t*- 



•^ .-*l . 





•^^- 



-n^f-^ 



4^ 



V J. 



^,-*- 



r 



U 



//'^ 



■X)^ 



:*Au, 



y' 





< 



1»*v- 



;# 



^ 



..)":'^^ 



H(' ' 



Vera Danchakoff, del. 



595 



