xil CONTENTS. 



PAGE 



Products of Tissue Change, 65 



Carbohydrates, 69 



Fats, * 71 



Inorganic Bodies, 71 



CHAPTER iV. 



THE VITAL CHARACTERS OF ORGANISMS. 



Protoplasmic Movements, 74 



Reproduction, 78 



Bacteria, 81 



Amoeba, 83 



Paraiusecium, 86 



CHAPTER V. 



NUTRITION AND FOOD STUFFS. 



Classification of Foods, . . 91 



Composition of Special Forms of Food, 93 



Milk, 95 



Cheese, Meat, Eggs, etc., 97 



Vegetables, 99 



CHAPTER VI. 



THE MECHANISM OF DIGESTION. 



Mastication, 104 



Deglutition, 106 



Nrrvous Mechanism of Deglutition, Ill 



Vomiting, 115 



Movements of the Intestines, 117 



Defecation, 119 



us Mechanism of tin- I in->t ina 1 Motion, ..... 1^1 



CHAPTER VII. 

 MOUTH DIGESTION. 



Salivary and Mucous Glands 125 



Characters of Mixed Saliva, . 129 



