PREFACE 



THIS Manual is intended to familiarize the 

 general reader with the outlines of the Science 

 which deals with the body in action, and which 

 describes the working of life's mechanisms. In 

 its preparation the author has kept in view the 

 possibility of the work being useful as a text-book 

 for Senior Classes in Physiology at School. As 

 the whole foundation of the knowledge of Health- 

 Science must rest upon the basis afforded by an 

 acquaintance with the body's functions, this volume 

 may also appeal to students of Hygiene. 



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