PREFACE. 



IN preparing this text-book, much difficulty was experienced 

 in dealing with a subject of a somewhat technical character 

 without using too freely the technical terms incident to 

 Anatomy and Physiology. The practice of the authors of 

 the best text-books published has, however, been followed. 

 The introduction of a limited number of the simpler scientific 

 names, while partly a necessity, nevertheless affords an oppor- 

 tunity for pupils to become early acquainted with the various 

 parts of the human frame under names which are more 

 correct and more suitable than many of the familiar terms in 

 common use ; besides, experience shows it is impossible to 

 fix in the memory a knowledge of any subject, except by 

 the use of its own appropriate nomenclature. 



The object of the author has been to put clearly before the 

 teachers and pupils the leading facts concerning the structure 

 and functions of the various organs of the body, and, at the 

 same time, to associate with these facts the physiological 

 action and effects of alcoholic stimulants and narcotics. The 

 pupil is, in this way, at every turn confronted with the evil 

 effects of alcohol and tobacco, the dangers accompanying 

 their use, and the tremendous risk of tampering with such 

 powerful agents of destruction. 



