No. 1.] ORIGIN OF HUMAN MONSTERS. 313 
Fic. 32tb—Embryo attached to the chorion. X 4 times. 
tending to the umbilical cord. The tail end of the embryo is 
nearly solid. A large share of the dissociation may be due to 
the dilute alchohol (50 per. cent) in which the embryo had 
been placed ten days before I got it. This, however, could 
not alter the general shape of the embryo and its attachment 
to the chorion. 
Fic. 321c—Section of the embryo, main wall of the chorion and villi. 
x9 times. 
