A X. 



\ 



^■^i~. 



f hi \ 



VJ3 



- vrv\ 



"V I I 



I \ 



J^^ G 



Fig. 224. — Views of the blastoderm of the Fowl's egg during segmentation. 

 (After Patterson, 1910.) 



A, 3 hours after fertilization ; B, 3J hrs. ; C, 4 hrs. ; D, 4-5 hrs. ; B, about 5 hrs. ; P, 5£ hrs. 



G, 7 hrs. ; H, 8 hrs. 



