vi PREFACE TO THE SECOND EDITION 



I desire to acknowledge the assistance of the following 

 gentlemen in the preparation of this book: 



Mr. Howard C. Pierce, Investigator in Poultry and Egg- 

 handling, Bureau of Chemistry, United States Department 

 of Agriculture, formerly in charge of poultry husbandry at 

 Iowa State College, where it was my pleasure to work under 

 his direction as assistant. He generously placed at my dis- 

 posal his personal lecture notes used at Iowa State College. 

 I have made large use of these in preparing the chapters on 

 Feeding, and in the discussion of feedstuffs have made 

 several direct quotations without further credit than is 

 given herewith. His courtesy and my obligation it is a 

 pleasure gratefully to acknowledge. 



Mr. N. L. Harris, Superintendent of the Poultry Plant at 

 Kansas State Agricultural College, read portions of the 

 manuscript, making practical suggestions for its betterment. 



Mr. J. G. Halpin, Professor of Poultry Husbandry, Uni- 

 versity of Wisconsin, made several helpful suggestions, 

 particularly in reference to the chapters on The Poultry 

 Industry, Housing and Hygiene, and Preparing for Con- 

 sumption. 



Mr. A. G. Philips, Professor of Poultry Husbandry, 

 Purdue University, made several pertinent suggestions 

 concerning the chapter on Breeding. 



Messrs. George C. Bowman and Harry Perry, of the 

 Seymour Packing Company, Topeka, Kansas, and Mr. 

 John Perry, of Perry Brothers, packers of poultry and eggs, 

 Manhattan, Kansas, have made numerous helpful sugges- 

 tions concerning the chapters on The Poultry Industry, and 

 Preparing for Consumption. 



Mr. F. E. Mussehl, Instructor in Poultry Husbandry, 

 University of Wisconsin, made numerous helpful suggestions 

 concerning the chapters on Feeding, and Diseases and Para- 



