422 MINOT. [Vot. II. 
more: there were no data as to the duration of gestation. 
The uterus was opened, and preserved in Miiller’s fluid without 
disturbing the membranes. 
A section through the amnion, chorion leve, and uterine 
° 
e 
) 
s 
° 
ra’ 
°, 
os 
Sano 
28 \ o's.4 
s8 fers ¢ 
A hae 
3 vertical section through the decidua vera, with the chorion 
; Cho, chorion; c, epithelium (cellular layer of chorion); wv, blood-ves- 
avities; “sc, muscularis: the blood-vessels are represented dark.  X 40 
'‘@o@ 
vrai Saent-’ 
Am, amnion 
Cut 33. — Uterus about seven months pregnant 
zve and amnion 77 sz/z. 
sel; g/, spaces supposed to be gland c 
diams. 
] 
mucosa, stained with hzmatoxyline, and viewed with a low 
power, is represented in Cut 33; the dark spots are maternal 
blood-vessels, which have been shaded for the sake of clearness. 
The amnion, am, and chorion, cho, present the characteristics 
