Jan. 1922] 



ANNUAL EEP0R1 



Fund, and then those under the Miscellaneous Fund. Broadly speaking; 

 these are divided into the classifications mentioned at the beginning of thfe 

 report. 



' RESULTS OF WORK IN ADAMS PROJECTS. 

 Studies in Animal Nutrition. 



The principle of the balanced ration, as worked out in the various experi- 

 ment stations of the country, has resulted in untold savings to farmers in 

 the practice of stock feedmg. Most of the background of this subject, how- 

 ever, is still only roughly charted. The physiological reactions of animals 

 to different treatments in feeding and at varying stages of development have 

 not been fully determined. Perhaps the main reason for this lack of in- 

 vestigation has been the cost of proper equipment for the determination 

 of feeding values; and the construction at this Station of an inexpensive 

 respu-ation chamber for domestic animals may, as the Experiment Station 

 Record puts it, "serve to stimulate investigation and have a profound in- 

 fluence on the progress of nutrition inquiry."* 



This chamber, the first of its kind, and a supplement to the primarj' cham- 

 ber at the Penns3dvania Station, was constructed here three years ago b}- 



The respiration chamber used in the nutrition studies. 



Dr. F. G. Benedict of the Nutrition Laboratory, Carnegie Institution, who 

 is co-operating with us and sharing the expenses of the project. It has 

 been described at length in Technical Bulletin No. 16, and in the reference 



*Experiment Station Record, U. S. Department of Agriculture. January, 

 1921. Vol. 44, No. 1. p. 8. 



