Miscellaneous. 203 
the opposite animal, about the region of the twenty-first somite. 
Each is filled with a mass of sperm that issues from the vas deferens. 
The idea advanced by Vejdovsky—that the spermatophores in 
Lumbricus are formed from the sperm-receptacles—does not hold in 
Allolobophora. A renewed study of Lumbricus terrestris by the 
above method of hardening in situ with boiling water and Perenyi’s 
liquid shows that here also the spermatophores are opposite the vasa 
deferentia. 
Until reasons for other views are given we may tentatively hold 
that the spermatophores in terrestrial Oligochete are not of the 
importance they assume elsewhere, but that they are to a large 
extent accidental results of secretions taking place during conjuga- 
tion, and that they play no part in the subsequent processes leading 
to fertilization of the eggs.—Johns Hopkins University Circulars, 
vol. xiv. no. 119, p. 74. 
Note on the Origin of the Bell-Nucleus in Physalia. 
By Serraro Goro. 
At the beginning of the present academic year Dr. Brooks kindly 
placed at my disposal specimens of Physalia, which had been col- 
lected and preserved by him some years ago, with the desire that I 
should make a study of them, with special reference to the nature 
of the so-called female gonophores (Haeckel). I also had occasion 
to make observations on the development of the male gonophores ; 
and it has turned out that there is a peculiar feature in the forma- 
tion of the bell-nucleus to which attention has, so far as I know, 
never been called. In this short preliminary note I propose to 
describe the process briefly. In the accompanying diagram I have 
bl 
Longitudinal section of a young male gonophore. 
E L, entodermal lamella; G N, germ-nucleus. 
represented a longitudinal section of an early stage in the develop- 
ment of the male gonophore. In this particular specimen the 
