203 
to discover the Ova of Rabbits. 
portionable to the time ; the umbilical chord now for the first 
time distinct, and the tail detached from the under surface of 
the uterus ; there was something unintelligible about the head, 
it was bifid on the side next the mouth, with a hole in each ex- 
tremity; the intestines were now apparent, at least the rectum, 
as were the lower extremities. 
EXPERIMENT IX. 
Opened a doe sixth day complete: found the ova loose in the 
uterus, as described by De Graaf, and corresponding nearly 
to the corpora lute a, six in one horn and four in the other ; the 
ova were transparent and of different sizes ; they were double, 
and contained each an internal vesicle, there was a spot on one 
side in most of them, which I conceived to be the intended 
point of adherence between them and the uterus; the internal 
vesicle was not equally in proportion to the external, but in 
somb larger, in others less ; I even suspect I saw something of 
the foetus : a polypous excrescence in the uterus near the ori- 
fice of the fallopian tube, had detained four of the ova at that 
place ; others were scattered in the uterus : just where one of 
these vesicles had become stationary a white vascular belt was 
beginning to form, and in the middle of this a cavity where the 
vesicle lay; the inner membrane I take to be amnion, the outer 
chorion. 
EXPERIMENT X. 
Opened a doe the seventh day: the ovaria were shrunk; 
there were something like three corpora lutea , but not distinct; 
there were two polypi or solid excrescences in the left horn 
of the uterus, but no ova. 
D d 2 
