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 



Fig. 70. — 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 zoology 

 are approached from the embryological side, and, as a con- 

 sequence, the work of the great army of anatomists and 



