149 



WEIGHTS OF CHIlMICAL ELEMENTS IN THE BODY OF 

 A MAN WEIGHING I48 LBS. 



Oxygen 92.4 pounds 



Carbon 31.3 '• 



Hydrogen 14,6 " 



Nitrogen 4.6 " 



Calcium 2.8 " 



Phosphorus 1.4 " 



Potassium .34 " 



Sulphur .24 



Chlorine .12 " 



Sodium .12 " 



Magnesium .04 " 



Iron .02 



Fluorine .02 " 



Total 148.00 " 



COMPOUNDS IN THE BODY OF A MAN WEIGHING 

 148 POUNDS. 



Water 90.0 pounds 



Protein (Albuminoids) 26.6 " 



Fats 23.0 " 



Carbohydrates (starch, sugar) .1 " 



Mineral matters (inorganic) 8.3 " 



Total 148.0 



#S^< 



The Nutrients cf Food. 



Having learnt somewhat of the compounds of the body and that 

 the latter is built up by the functions of the organs of the body from 

 the digested food, we may go on to consider the composition of foods, 

 vegetable and animal. In view of what has already been said we shall 

 not be surprised to hear that the edible and nutritive portions consist, in 

 varying proportions, of those ingredients or compounds already consi- 

 dered, viz: Albuminoids, Carbo-hydrates, Fats and Mineral matters 



