INTRODUCTION 



The object in publishing this laboratory man- 

 ual is to fill a long-felt want in poultry short 

 courses, where the classes are large and where a 

 great amount of practical work must of neces- 

 sity be crowded into a short period of time. 



There is a growing demand for systematic 

 laboratory work in all of our practical agricul- 

 tural studies, and especially so in the short 

 courses. The purpose of this work, therefore, 

 is to aid the beginner in obtaining the maximum 

 amount of benefit in the least possible time, and 

 also to better enable him by personal study to 

 grasp the fundamental principles underlying the 

 work without the close personal attention of 

 the instructor, which is impossible in our poultry 

 classes. 



The manual may also be used as a guide for 

 laboratory work in collegiate courses, more than 

 one period being given to the more important 

 exercises ; which should be left to the discretion 

 of the instructor, the amount of time being de- 

 voted to each part depending on the equipment 



