PREFACE 



The following exercises have been arranged especially for general courses 

 in the Elements of Dairying. A number of these exercises have been used in 

 separate form and have been brought together for courses of this nature. 

 They are designed to cover the use of the Babcock Tester, Lactometer, and 

 special work with Farm Separators and Churns. They have all been used by 

 the writer in class work, a number of them were recommended by the Com- 

 mittee on the Courses of Study of the Official Dairy Instructors' Association. 



These exercises are designed to be used with courses having two or 

 more hours' laboratory practice each week, and should familiarize the student 

 sufficiently with the general practice so that he may be able to handle the 

 more advanced courses in testing and creamery work. The exercises are on 

 separate pages so that the book may be used as a note book, and all answers 

 and notations can be made while the student is in the laboratory. 



Ernest L. Anthony 

 Pennsylvania State College, 

 January 1, 1914 



