PREFACE. 



This book is intended to go into the schools of 

 the country as a companion to the " TEACHERS' ANA- 

 TOMICAL AID," which is supposed to be before the 

 class during every exercise or recitation in Physi- 

 ology, and to which the illustrative references, found 

 throughout these pages, relate. 



To the teacher who gives oral lessons in Physi- 

 ology, by the use of the Aid, this volume offers 

 assistance in presenting the truths of the science in 

 proper order, plain language, and with many illus- 

 trations gathered within the range of the pupils' 

 observation and experience. Thus, even inexperi- 

 enced teachers are furnished with methods and 

 material to conduct a well-arranged course of daily 

 drills on a subject of surpassing importance and 

 interest. 



To the teacher who conducts a recitation, with the 

 use of the Aid, this work offers guidance in point- 

 ing out, precisely, by its frequent references, those 

 parts or features on the plates or manikin sections, 

 which illustrate any topic in hand, as found in the 

 current text-books on Physiology. 



While this book is thus intended to be helpful to 

 (1) 



