Fic. 286c.—Section of a villus. 62 times. V, villus; N, necrotic villi 
and syncytium; H, hyaline degeneration of mesoderm and syncytium; 
X, peculiar masses of cells in the mesoderm, probably degenerated 
blood-vessels. 
No. 288a. 
Ovum, 85 x-3'5 x 35.mun: ; embryo, °C: se emm. 
Dr. Brille, Baltimore. 
On one end of the chorion there is a space (30 x 30 x 5 mm.) 
filled with reticular magma. Within this, and pushed to one 
side, a collapsed amnion may be seen, containing the embryo. 
The entire mole is surrounded by decidua and pus, in which 
there is the collapsed ovum. The intervening space is filled 
with blood through which ramify a few long slender villi. 
These are fibrous and devoid of blood-vessels. At points they 
are invaded by syncytium and leucocytes. 
The amnion, which is also fibrous, is partly filled with 
magma reticulé and is very rich in degenerated migrating cells 
