\ATE III- 
A 
Fig. I. — Successive stages in the segmei 
( Copied from F. E. 
A. Stage with eight segments still arran; 
B. Side view of stage with eight segm( 
0. Side view of stage wdth sixteen segi 
D. Side view of stage with forty-eight ; 
E. View from above of stage with fort 
F. Side view of embryo in the blastospl 
cells which give rise to the ectode 
tlie lower pole. 
rs. Segmentation cavity ; ec. granular c 
en» clear cells which form the 
