CONTENTS. 



CHAPTER I. 



TAOE 



THE PHENOMENA OP LIFE, . . . . . . ; . . ; 1 



Properties of Protoplasm, . , . ., . . . . . - . 3 



Structure of Protoplasmic Cells, . . . . ... 9 



The Cell Nucleus, . . ..,.-. . . . ..,. , . . 11 



Attraction Sphere, . . . . .. . .... .18 



Cell Division, . . . ..;.. . . . . .13 



Plants Compared with Animals, . . . . . . . . .17 



CHAPTER II. 

 THE FUNCTIONS OF ORGANIZED CELLS, . ...... . -* ...-". 22 



CHAPTER III. 



THE STRUCTURE OF THE ELEMENTARY TISSUES, . . . ..26 



Epithelial Tissues, .... , . . . . . .28 



Connective Tissues, . . . . . 40 



The Teeth, . . . . . ... . . . .' .69 



Development of the Teeth, . ; . , . . . . . . .76 



Muscular Tissues, . . . ... . . . . .81 



Nervous Tissues, . . . . . . . . . . 91 



CHAPTER IV. 



THE CHEMICAL COMPOSITION OF THE BODY, . . . . . .110 



Organic Substances, . . . . . ._ . . . .111 



Inorganic Substances, . .,- - ^ r> 



CHAPTER V. 



THE BLOOD, . -/^ - l .... . .. . . 139 



Coagulation, . . . ; .- . . 131 



The Corpuscles, . . .. .. . 140 



Chemical Composition, . . .- . .- . . . . . ir>0 



Gases of the Blood, . .-.,... 155 



Development of the Corpuscles, . . . . . . " .167 



CHAPTER VI. 



THE CIRCULATION OF THE BLOOD, 171 



The Heart 172 



The Arteries, 180 



The Capillaries, . 183 



vii 



