380 THE ESSENTIALS OF AGRICULTURE 



separator, turning the separator the speed required by the directions. 

 Separate another part, running the separator at half speed and the 

 remainder at three-fourths speed. Test the samples of the cream and 

 skim milk of each run and note results. 



REFERENCES 



ROSE, LAURA. Farm Dairying. A. C. McClurg and Company. 



McKAY, G. L., and LARSON, CHRISTIAN. Principles and Practises of 

 Butter-Making. John Wiley & Sons. 



WING, H. H. Milk and its Products. The Macmillan Company. 



Buttermaking, Farmers' Bulletin 541, United States Department of 

 Agriculture. 



Use of Milk as Food, Farmers' Bulletin 363, United States Department 

 of Agriculture. 



Bacteria in Milk, Farmers' Bulletin 490, United States Department of 

 Agriculture. 



Production of Clean Milk, Farmers' 1 Bulletin 602, United States Depart- 

 ment of Agriculture. 



