THE ANIMAL AS A PRIME MOVER. 



309 



On account of unavoidable waste, exact standards can not be adopted 

 in a practical ideal dietary, and it is universally deemed necessary to 

 establish, beside an exact standard, an actual practical standard diet- 

 ary, with somewhat increased allowance. The first table furnishes a 

 comparison of certain daily dietaries computed principally by Prof. 



I.— STANDARD AND ACTUAL DIETARIES. 



CARBOHYDRATES. 



FATS. 



POTENTIAL ENERGY, 



Nutrients, Grains 



— i — . — i — i — i — i — 



200 400 600 800 1000 1200 



Potential Energy . .Calories 



1000 2000 3000 4000 5000 6000 



Subsistence diet (Playfair) 



TJnder-fed laborers, Lombardy, Italy . . . 



Students, Japan 



Lawyers, Munich, Germany 



Well-paid mechanic, Munich, Germany . . 

 Well-fed blacksmith. England ....;.. 



German soldiers, peace footing 



German soldiers, war footing 



French-Canadian families, Canada .... 

 Mechanics and factory operatives, Mass. . 



Well-to-do family, Conn « 



College students, Northern & Eastern States 



Machinists, Boston, Mass 



Hard-worked teamsters, etc., Boston. Mass. 

 U.S. Army Ration 



U. S. Navy Ration . 



N. Y. S. Reformatory Standard ...... 



W. O. Atwater, and bearing upon people in various parts of the globe — 

 together with lines indicating the theoretical standard dietary adopted 

 in the Eeformatory. The second table offers a comparison between 

 this exact standard and the actual dietary as provided in three grades 



