vi PREFACE. 



pliance with the law. Copious quotations have been taken 

 from the best authorities on this subject. The same 

 high-grade illustrations have been used that brought such 

 favorable comment on the earlier work. 



This briefer edition has, too, the full benefit of the 

 criticism of the eminent authorities whose names are listed 

 in the larger work. 



TO THE TEACHER. 



For any practical work in physiology it is very desirable 

 to have a room furnished with tables and supplied with 

 water. 



Each pupil should make full notes and drawings of the 

 work done and the organs studied and dissected. Only by 

 so doing will he firmly fix and retain what he gathers from 

 day to day. 



In the larger work by the author are many experiments 

 and dissections given in full which are here omitted in 

 order to present a briefer course. In the larger work there 

 is also given a list of books which are most helpful in 

 teaching physiology. 



