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from the ovarium to the uterus in women. 
became opaque. The os tineas was entirely shut up with a 
strong solid jelly, the two orifices at the angles of the uterus, 
by which it communicates with the Fallopian tubes, were both 
pervious. 
As the ovum was so extremely small as to admit of dis- 
pute, whether it was one or not, I carried it immediately to 
Kew to Mr. Bauer, who, after examining it, said that it looked 
like the egg of an insect. His drawings of the ovum and 
uterus, show to what an excellence microscopical observations 
can be carried, since in so small a particle of animal matter, 
he has pointed out the effects of impregnation even before 
any part of the vascular system had been formed, -and where 
only the two projecting points within the ovum had been 
marked out as the future situations of the heart and brain. 
These two points are still to be distinguished in the ovum in 
a dried state, and that towards the broadest end is the largest. 
Small as this ovum is, it bears a very fair proportion to 
that represented by Dr. Hunter at the end of three weeks ; 
and, had this woman lived twenty-four hours longer, the 
ovum would probably have in that time been united to the 
fibrous structure surrounding it, and appeared secluded from 
the cavity of the uterus in the same degree as Dr. Hunter's 
is represented to be. 
The corpus luteum has always been considered as the 
effect of impregnation, and a certain mark of conception hav- 
ing taking place, as I have already observed ; but in this case 
there was not only the corpus luteum belonging to the pre- 
sent conception, but one still more distinct in the middle of 
the ovarium. This unexpected appearance of two corpora 
lutea, made me enquire farther into the subject, and led me 
to discover that the corpus luteum , in its origin, is a solid 
MDCccxvir. L 1 
