% Mode of Generation of the Kangaroo. 229 
back-bone with the posterior part of the skull, that it is readily 
recognized to be the same parts in an earlier stage of their 
formation. 
I had an opportunity on the 22d of August, 1794,, of read- 
ing these observations, and shewing the annexed drawings, to 
Mr. Considen, who was seven years an assistant surgeon to 
the general hospital in New South Wales, and who had paid 
much attention to this subject. During his residence in that 
country, he met with the uterus of the kanguroo in its en- 
larged state, three different times ; in all of these the degree 
of distension was nearly the same ; the gelatinous matter con- 
tained in the uterus, examined immediately after death, was 
of a bluish-white colour, in consistence like half-melted glue, 
and so extremely adhesive as to be with difficulty washed off 
from the fingers ; the internal membrane of the uterus was 
very vascular, and evei) more so than that of the lateral ca- 
nals. The oval enlargements of the fallopian tubes contained 
a gelly similar to that found in the uterus, but thinner in con- 
sistence. He found also the other appearances which I have 
already described, but in only one of them was the foetus suf- 
ficiently advanced to be detected, and that resembled the back- 
bone delineated in one of the annexed drawings. 
Immediately after parturition, the parts are nearly brought 
back into their original state ; the only circumstance deserving 
of notice is, that the opening leading directly from the uterus 
to the vagina, which is not met with in the virgin state, after 
being enlarged by the passage of the foetus, forms a projecting 
orifice, and almost wholly conceals the meatus urinarius. 
Were we to consider the uterus and its appendages in the 
mdccxcv. H h 
