REPORT OF THE ASSISTANT PROFESSOR OF 

 DAIRY HUSBANDRY AND ANIMAL INDUSTRY. 



To the Director of the Cornell Unwersity Agricultural Experi- 

 ment Station : 



Sir. — The work of the Dairy Division of the Experiment Station 

 has been continued during the year mainly along the lines of pre- 

 vious investigation, and three bulletins, viz., No. 171, "Concerning 

 Patents on Dilution Separators ; " No. 173, " The Relation of Food 

 to Milk Fat;" and No. 178, "The Invasion of the Udder by Bac- 

 teria," have been published. An investigation upon the usefulness 

 for food of sugar beet pulp has also been made during the year. 

 This matter is exceedingly timely at present, and the results of the 

 investigation will be published shortly. 



A work of considerable importance in the Dairy Division has 

 been the supervision of butter records of thoroughbred cows at the 

 homes of the owners. This work has been undertaken at the request 

 of several of the Breeder's associations and is done in accordance 

 with the rules subjoined. 



Conditions Governing Butter Tests of Thoroughbred Cows. 



The Cornell University Agricultural Experiment Station will 

 send an authorized representative to supervise the milk and butter 

 record of thoroughbred cows for any one desiring such tests made, 

 upon the following conditions : 



First — All tests shall be for seven consecutive days. 



Second — The person for whom the test is made will pay all 

 expenses in connection with the test, and the compensation for the 

 station representative conducting the test shall be $2 per da}' for 

 each day of the test, unless otherwise arranged. The person for 



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