138 



FOOD. 



Protein, 

 in grams. 



Nitrogen, 

 in grams. 



Fats, 

 in grams. 



Carbohydrates 

 in grams. 



Fuel-values, 

 calories. 



Standard dietary as given by typical dietaries of men 

 at hard labor in the northern portion of the* temperate 

 zone. 



Standard dietary as given by proposed U. S. Army ration 

 for tropical service. 



Standard dietary for native laborers in the tropics ; based 

 on the weight of 145 pounds for purposes of comparison. 



Standard dietary of the laboring class of natives in the 

 tropics (Java, British India, Guadeloupe, Abyssinia), as 

 determined from the food actually consumed by them at 

 normal body-weights. 



of the foods at present provided by a too generous government. 

 It is true that the sugars and starches should be slightly augmented, 

 but their increase is small when compared with the considerable 

 reduction of nitrogenous and fatty material which is proposed. 

 Many of the components of the present ration, as is seen by the 

 above table, require no change in the consideration of the trop- 



