PREFACE ix 



charge or which can be found in reference libraries. The miscel- 

 laneous references in the appendix deal with the entire subject in 

 a general way. It is recommended that references be studied so 

 far as facilities will permit, since a broader conception of the sub- 

 ject will thus be obtained. 



That this book may fill a place in the world of poultry litera- 

 ture, may meet the need for a modern text-book, and may help 

 solve the problems which are so annoying to many, whether they 

 be students, poultrymen, or farmers, is the earnest wish of the 

 author. 



HARRY R. LEWIS. 

 NEW BRUNSWICK, NEW JERSEY, 

 October, 1913. 



