VI 



CONTENTS. 



Chapter IX.— L.UTKAL Absoiiptio.v - 



ClIAPTEIl X. CincCLATIOX 



§ 1. Diffused Circulation 



2. Vascular Circulation - 



3. Respiratory Circulation - 



4. Distributionof Blood Vessels 



CHAPTEnXI.-— Rf.si'iiiatiojt . . , _ 



§ 1. Respiration in g-eneral 

 2. Aquatic Respiration - . . 



o. Atmospheric Respiration 

 4. Chemical Chang^cs effected by Respiration 



Chapter XII.— Seciietiox 



Chapteii XIII. — AnsoiiPTiojr 



Chapter XIV.— Nervous Power 



rage 

 164 



167 



167 

 170 

 191 

 201 



208 



208 



210 



221 



236 



243 



250 



252 



PART III.— THE SENSORIAL FUNCTIONS. 



Chapter I. — Sensatiout - . . , 



Chapter II. — Touch 



Chapter III.— Taste 



Chapter IV.— Sxell 



Chapter V — Hearing 



§ 1. Acoustic Principles - 



2. Physiology of Hearing- in Man 



3. Comparative Physiology of Hearing - 



Chapter Vf.— Vision 



§ 1. Object of the Sense of Vision 



2. Modes of accomplishing the objects of Vision 



3. Structureof the Eye - 



4. Physiology of Perfect Vision 



5. Compai-ativc Physiology of Vision . 



Chapter VII.— Pekceptiox - 



- 258 



268 



- 279 

 281 



- 294 

 294 



- 298 

 308 



- 315 

 315 



- 318 

 325 



- 332 ' 



)7 



oot 



558 



