THE RISE OF EMBRYOLOGY 231 
Widely spread throughout recent literature is to be noted 
a reaction against the too wide and unreserved application 
of this doctrine. This is naturally to be expected, since it 
is the common tendency in all fields of scholarship to demand 
Fic. 7o.—Oskar HERTWIG IN 1890. 
a more critical estimate of results, and to undergo a reaction 
from the earlier crude and sweeping conclusions. 
Nearly all problems in anatomy and structural zoédlogy 
are approached from the embryological side, and, as a con- 
sequence, the work of the great army of anatomists and 
