ACKNOWLEDGEMENTS 



The author desires thankfully to acknowledge 

 the outside sources from which aid was obtained in 

 the preparation of the book. These include sundry 

 bulletins issued by certain of the agricultural experi- 

 ment stations in the United States, also the helpful 

 work, "A Book on Silage," written by Prof. F. W. 

 Woll of the University of Wisconsin. The sketches 

 were nearly all prepared by Mr. Charles P. Taylor of 

 the University of Minnesota. 



