466 "Journal of Comparative Neurology and Psychology. 



the centers of correlation are similarly treated genetically. The 

 study of the vertebrate nervous system is not easy and no primer 

 of neurology can be expected which w^ill make it so; but the com- 

 prehension of the human brain should be greatly facilitated by the 

 careful study of Johnston's exposition of the vertebrate type form 

 for each functional system and its evolutionary history. The 

 mastery of this manual by a student v^ell grounded in general 

 vertebrate anatomy and embryology, followed by a text-book of 

 human neurology wTitten from the standpoint of the functional 

 pathways, should provide an excellent foundation for research in 

 neurology, comparative psychology and the related fields. 



