Acknowledgements 



This study was initiated at the suggestion of Mr. George L. 

 Waugh. Dairy Specialist of the Merrimack Farmers' Exchange, Con- 

 cord, N.H. The concentrate mixtures used in 1952-53 were formu- 

 lated by Mr. Stanley L. Freeman. Dairy Specialist of the Chas. M. 

 Cox Company, Boston, Mass.. and Dr. Ruel E. Ward. Director of 

 Feed Research of the Eastern States Farmers' Exchange, West 

 Springfield, Mass. All of the concentrates used during the 1952-53 

 experiments and afterward were provided through the courtesy of 

 Mr. Freeman. Dr. Ward provided the four dairy cows used in 

 conducting the 1952-53 digestion experiments. The support of 

 these men is greatly appreciated. 



