144 
.1. H. HILL AND CHAS. H. o’dONOGHUE. 
of a very delicate reticulum, the meshes of which are 
occupied by a lightly staining coagulum. Leucocytes are 
present throughout the extent of the mucosa, being especially 
abundant in its more superficial region, below the uterine 
opithelium. 
The mucosa is not specially vascular. 
Case 2 (O.vi.^Ol). — Female killed on arrival. Pouch 
with reddish hairs. Not cleaned and not much enlarged. 
Left uterus 12'5 mm. by 12'5 mm. by 7 mm., right uterus 
14 mm. by 16’5 mm. by 7 mm. Ovaries with prominent 
Graafian follicles, ova full grown with peripheral nuclei. It 
is noted that this female would not associate with the male. 
Copulation may therefore have already taken place, but the 
genital organs were not examined for sperms. 
The uterus agrees closely as regards its histological con- 
dition with that of the preceding case. The mucosa measures 
in thickness from 2*4 to 2*7 mm., and the uterine epithelium 
*032 mm. The glands generally resemble those of Case 1 and 
are ciliated. 
An important advance is seen in the presence of numerous 
oapillaries in the connective tissue close below the uterine 
epithelium, some of which lie in actual contact with the deep 
surface of the latter. 
Making allowance for individual variation these two cases 
fshow that the growth changes initiated during pro-oestrus 
are continued without interruption throughout this period. 
P0ST-(ESTRUS. 
In the higher mammals, oestrus marks the climax of the 
pro-oestral changes, and is, according to Heape ( 11 ) and 
Marshall (loc. cit.), the period at which ovulation occurs. 
It is followed in the non-pregnant female by metoestrum, a 
period during which the various parts of the reproductive and 
accessory oi’gans return to a condition of rest. 
In Dasyurus, however, we meet with a markedly different 
state of affairs, since we find, as pointed out above, that ovula- 
tion as a general rule does not take place until some days 
