THE SKELETON OF THE VEKTEBRATE HEAD. 19*7 



maxillaries, the maxillaries, and palatals, as elements of three 

 distinct cranial segments. In the course of my investigation 

 into the development of the teeth, I became early aware of the 

 correctness of Goethe's views on this subject, and have found 

 myself, therefore, unable to coincide with the doctrine of Pro- 

 fessor Owen as to the constitution of his palato-maxillary 

 or nasal hseinal arch. 



