VI CONTENTS. 



Page 



CHAPTER IX. LACTEAL ABSORPTION - ... 164 



CHAPTER X. CIRCULATION - - - 167 



1. Diffused Circulation - 167 



2. Vascular Circulation - 170 



3. Respiratory Circulation - - 191 



4. Distribution of Blood Vessels 201 



CHAPTER XI. RESPIRATION - - 208 



1. Respiration in general ... 208 



2. Aquatic Respiration - - 210 



3. Atmospheric Respiration - 221 



4. Chemical Changes effected by Respiration - 236 



CHAPTER XII. SECRETION 243 



CHAPTER XIII. ABSORPTION - 250 



CHAPTER XIV. NERVOUS POWER - 252 



PART III. THE SENSORIAL FUNCTIONS. 



CHAPTER I. SENSATION - 258 



CHAPTER II. TOUCH 268 



CHAPTER III. TASTE - - 279 



CHAPTER IV. SMELL - - 281 



CHAPTER V. HEARING . . 294 



1. Acoustic Principles - ... 294 



2. Physiology of Hearing in Man - - . 298 



3. Comparative Physiology of Hearing - - 308 



CHAPTER VI. Vision - - - 315 



1. Object of the Sense of Vision - . 315 



2. Modes of accomplishing the objects of Vision - - 318 



3. Structure of the Eye - ... 325 



4. Physiology of Perfect Vision - - 332 



5. Comparative Physiology of Vision - - 337 



CHAPTER VII. PERCEPTION ------ 353 



