PREFACE TO THE SECOND EDITION. 



When the first edition of this book was published less 

 than a half dozen medical schools in the United States 

 required the entering student to have any knowledge of the 

 structure of the lower animals. To-day a knowledge of 

 mammalian anatomy or zoology is considered one of the 

 first requisites for entering upon an intelligent study of 

 medicine. The signs of the times indicate that in the near 

 future no medical school will receive students without some 

 practical knowledge of the structure of a mammal. 



That the students of modern psychology, the teachers of 

 physiology in all high schools and the directors of all 

 gymnasiums need a definite knowledge of the essentials of 

 the anatomy of a mammal, is becoming more and more 

 evident. These facts and the steady demand for the first 

 edition of this book have been the principal factors in 

 determining the preparation of a second edition. 



Owing to the gradual acceptance, in part at least, of the 

 B. N. A. nomenclature, numerous changes have been made 

 in the body of the text. The names used in this edition are 

 such as have found favor with the majority of American 

 anatomists. The author's easy and quick method of prepar- 

 ing the skeleton for study is for the first time presented 

 in print. In several instances the language has been made 

 more clear, and several new figures and a glossary have 

 been added which will be of special help to the beginning 

 student of anatomy. 



ALVIN DAVISON. 



11086 



