New York Agricultural Experiment Station. 



81 



A fifth comparison of hand and machine cleaning was made using 

 the same cows as in the fourth comparison and keeping all of the 



Table XVI — (continued). 



Grand average: Whole milk, 210; strippings, 79; difference, 131. 



conditions the same as before except that the cows were carefully 

 clipped on the udder, flank, and adjoining portions. This comparison 

 was made April 1 to May 9, 1912, and the results from the 96 samples 

 of whole milk and a like number of samples of strippings are given 

 in Table XVII. 



Here again the results from two cows favor each method of clean- 

 ing if the results from the whole milk are considered while three 

 are in favor of hand cleaning if the comparison is based upon the 

 results after the germs in the strippings have been deducted. The 

 grand averages of the germs from the whole milk give a balance 

 6 



