Xll CONTENTS. 



PAGE 



/Products of Tissue Change, 73 



/Carbohydrates, 78 



XFats, 79 



s Inorganic Bodies, 80 



CHAPTER IV. 



THE VITAL CHARACTERS OF ORGANISMS. 



^^Protoplasmic Movements, 83 



Reproduction, 87 



Bacteria, 90 



Amoeba, . 92 



Paramoscium, 95 



CHAPTER V. 



NUTRITION AND FOOD STUFFS. 



Classification of Foods, 100 



Composition of Special Forms of Food, 102 



Milk, 103 



Cheese, Meat, Eggs, etc., 105 



Vegetables, 108 



CHAPTER VI. 



THE MECHANISM OF DIGESTION. 



Mastication, 113 



Deglutition, 115 



Nervous Mechanism of Deglutition, 120 



Vomiting, 123 



Movements of the Intestines, 126 



,_Defecation, 128 



Nervous Mechanism of the Intestinal Motion, 130 



CHAPTER VII. 



MOUTH DIGESTION. 



Salivary and Mucous Glands, 134 



- Characters of Mixed Saliva, , , . , ,..,.,,., 137 



