CH0XDK1080MES IN CELLS OF FLSH-EMBRYOS 



J. DDESBERG 



PLATE 2 



r 





4a 





4b 







u 



^.,»l', 



'■W^.'' 



4c 



iSfl 



6.-. 



oh 



Hlff 

 mm 



vim 

 .1-1. 



/i, 



6c 



6c' 



491 



