2 7 8 



C. M. CHILD. 



after section is of course due to complete collapse. The pieces 

 in ]this [condition are not strictly comparable to the distended 

 pieces. 



The data indicate that a marked change in form occurs in 

 these pieces and that this change consists in an approach to the 

 typical proportions, although none of the pieces attain them. 

 For'example the piece B (Fig. 13) approaches most closely at 



\J 



FIG. 3. 



the end of the experiment to the original proportions of the whole 

 before section, but even here the tentacles are relatively longer, 

 the body-length is relatively less or the transverse diameter is 

 relatively greater than in the whole. In the short piece C (Fig. 

 1 8) the proportion between length and transverse diameter is 6:1 



