PREFACE TO THE SECOND EDITION. 



This book has been written in order to furnish the student 

 with a comprehensive and convenient statement of the facts 

 and principles of Poultry Production. It is hoped that it 

 will render a service in teaching its subject in the great 

 producing areas where farm poultry is abundant and poultry 

 farms rare. It is of necessity very largely a compilation, 

 and as far as possible consists of a systematic report of facts 

 fully or partly established by careful experiment. 



Aside from its method of treatment, it differs from other 

 texts on poultry husbandry in its omissions. Our knowledge 

 is sufficiently voluminous to make impractical the use of a 

 complete treatise on all phases of the poultry industry as a 

 text in any course designed as a requirement for all agricul- 

 tural students. The title subject has been interpreted as 

 including those operations incident to breeding and rearing 

 domestic birds for food purposes, and preparing their pro- 

 ducts for market. 



The material is largely that used by the author in courses 

 taught at Iowa State College and Kansas State Agricultural 

 College during the last seveji years. This has been supple- 

 mented by knowledge gleaned from the literature of the 

 subject. Credit is given for material wherever uSed, when, 

 the person with whom it originated is known. 



