654 



MISCELLANEOUS FARM SUBJECTS 



TABLE III. Comparative Cost of Digestible Nutrients and Energy 

 in Different Food Materials at Average Prices. 



[It is estimated that a man at light to moderate muscular work requires about 0.23 pound of pro- 

 tein and 3.050 calories of energy per day.] 



a The cost of 1 pound of protein means the cost of enough of the given material to furnish 1 

 pound of protein, without regard to the amounts of the other nutrients present. Likewise the cost 

 f energy means the cost of enough material to furnish 1,000 calories, without reference to the kinds 

 nd proportions of nutrients in which the energy is supplied. These estimates of the cost of protein 

 nd energy are thus incorrect in that neither gives credit for the value of the other. 



