CONTENTS. 



Page 



I. What the Study or Physiology Means 7 



II. Chemical Composition of Living Matter .... 12 



III. The Structural Units of Living Matter ... 28 



IV. Structural Units of Human Tissues — Histology . 39 



V. Foods and Nutrition . 5\ 



VI. Food Accessories; Alcohol and Tobacco . 73 



VII. Digestion . . 90 



VIII. Digestion (continued) . . 107 



IX. Absorption . . 133 



X. Digestion in- the Lower Animals . 146 



XI. Blood and Lymph ... . 159 



XII. Circulation . . . 180 



XIII. Circulation (continued) . . . 191 



XIV. Circulation in the Lovi^er Animals 212 

 XV. The Skeleton . . ... . 221 



XVI. The Skeleton (continued) . . . 244 



XVII. Skeletons of the Lower Animals 252 



XVIII. Muscles 265 



XIX. Muscles (continued) . . . 278 



XX. Movement in Lower Animals . . . 294 



5 



