250 



THE DEVELOPMENT OF THE CHICK 



'""W^: K. 





tf 



Bth^ \ -'^ ^ r - " ^'^^^^. Go// 



/ . 



f y'' 







.i^ 



AIJ/^. 





/ 



^30 



Fig. 150. — Lateral sagittal section of an embryo of 8 days. Right side of 

 the body. 

 All. N., Neck of the allantois. Cbl., cerebellum. Cr., Crop. E. T., Egg 



