TABLE OF CONTENTS 



PART I. THE PRINCIPLES OF FEEDING 

 CHAPTER I 



PAQES 



Intboduction: Man's Relation to Animal Lii^ . . 3-8 

 The conditions and problems involved in feeding animals. 



CHAPTER II 

 The Relations of Plant and Animal Life . . . 9-11 

 Origin of animal foods, 1; The plant stores energy, 2; 

 Plant substance a source of animal substance, 3; The 

 plant a source of animal heat, 4; Food a source of motive 

 power, 5. 



CHAPTER III 



The Chemical Elements Involved in Animal Nutri- 

 tion .... . 12-25 



Chemical elements involved in animal growth, 6. 

 The Elements and Their Sources: Carbon, 7; Carbon in 

 the air, 8; Oxygen, 9; Uses of oxygen, 10; Hydrogen, 

 11; Nitrogen, 12; Supply of nitrogen, 13; Uses of 

 nitrogen, 14; Argon, 15; Sulfur, 16; Phosphorus, 17; 

 Chlorine, 18; Iodine, 19; Potassium, 20; Sodium, 21; 

 Calcium, 22; Iron, 23. Proportions of the Elements in 

 Plants and Animals: Elements in plants, 24; Elements 

 in plant ash, 25; Elements in animals, 26; Ash elements 

 in animals, 27; Classes of matter, 28; Combustion does 

 not destroy matter, 29; Relation of combustible to 

 incombustible substance, 30; Organic and inorganic 

 classes, 31. 



(v) 



