EXPERIMENT STATION BULLETINS. 369 



APPENDIX. 



The balance of plant-food elements on farms differently managed has 

 been worked out in detail but owing to the size and complexity of the 

 tables it seemed advisable to submit them as an appendix rather than 

 earlier in the publication. 



In making these calculations information gained by Dr. H. G. Armsby 

 in his digestion experiments was made use of. For the composition of 

 the various farm crops the tables published by Dr. L. Van Slyke and 

 Dr. C. G. Hopkins were utilized. Information concerning the number 

 of stock found on the types of farms considered and the amounts of 

 feed of various kinds consumed was obtained from members of the 

 Animal Husbandry and Dairy Sections. We desire to express our ap- 

 preciation of this co-operation. 

 47 



