196 THE AMERICAN NATURALIST. [Vor. XXXVI. 
from the oral region of a young individual, while the nutri- 
tive component (z.) came from the aboral region and shows 
a piece of a spine (s.) attached to its base. Although, in this 
case, the nutritive component was rela- 
tively much larger than the reproductive 
stalk, a head regenerated on the latter 
which showed no apparent influence of 
the larger component but possessed only 
the characteristics of the reproductive 
head. 
Another ex- 
periment is 
shown in Fig. 
3 in which the 
nutritive stalk 
(n.) was many 
times larger 
than the small 
component 
taken from a 
reproductive 
polyp (7). The 
latter was cut 
(s.) was attached ^ d the a from the abo- 
(Drawn August 5 
ral region of 
an adult individual from which most 
of the generative buds had been 
removed.! Here, again, the union was 
complete, and again the regenerated 
head showed no effect produced by 
the larger component, but the new 
growth corresponded to what would 
probably have appeared on a repro- 
ductive stalk alone from which the a) amt shi te (ut) 
head had been removed. ven Moon ey d 
Many similar experiments were made, from which these 
have been selected as typical. Considering that these different 
1 Two generative buds were left, as shown in Fig. 5 Z. 

