No. 3-] ALLOLOBOPHORA FOETIDA. 503 
yet attempted to collect eggs showing these stages. Undoubt- 
edly, however, they can be found at some stage during copula- 
tion, either in the worm, or in the slime-tube. It is necessary 
to obtain these stages before deciding whether the first divi- 
ee 
VAN A 
r 
a 
Phas ir 
\/ | 
Fic. 4.— Some forms shown by the chromosomes of the first maturation spindle. 
sion is longitudinal or transverse, though the form of the tetrad 
suggests that the first division is a longitudinal splitting of two 
chromosomes attached end to end. 
I am in hopes that further work upon this material may 
enable me to obtain more definite results in several directions 
where at present I feel dissatisfied. 
I take pleasure in expressing my great obligation to Dr. 
Whitman for critical examination of my manuscript and for 
many other courtesies in connection with this paper. 
