PREFACE 



Such valuable practice may, in many cases, be furnished at the school under 

 the direct supervision of the instructor. Poultry projects carried on by stu- 

 dents at home will give more responsibility, and if they are well planned and 

 directed, they will furnish excellent practice. The instructor should supervise 

 home projects from tune to time. 



Following each exercise, blank spaces are left, in order that this book 

 may be used in part as a note book, and the majority of answers and important 

 notations can be made directly in the book while the laboratory work is in 

 progress. Each student using this manual should be provided with a loose- 

 leaf note book of about the same size, in which to make all rough notes, 

 dimensions and miscellaneous facts, and in which to make all mathematical 

 calculations. Such book should be carefully preserved for future reference, 

 or another plan would be to later attach the pages to this manual adjacent 

 to their respective exercises. All final deductions and required facts should 



be placed neatly in this manual as provided. 



HARRY R. LEWIS. 



NEW BRUNSWICK, N. J. 



MARCH, 1918 





