EGGS. 



149 



COMPOSITION OF MILK AND OTHEE FOOD-MATERIALS. 



. Nutritive ingredients, refuse, and fuel-value. 



Protein. Fats. Carbo- Mineral 

 hydrates, matters. 



Non-nutrients. 



Water. Refuse. 



Fuel-value. 



Protein compounds, e. g., lean of meat, white of egg, casein (curd) of milk, and 

 gluten of wheat, make muscle, blood, bone, etc. 



Fats, e. g., fat of meat, butter, and oil, I serve as fuel to yield heat and muscular 

 Carbohydrates, e. g., starch and sugar, j power. 



Nutrients, etc., p. ct 



Fuel-value of 1 lb......... 



400 800 1200 1600 2000 2400 2800 3ZOO 3600 4 



