Xll CONTENTS. 



CHAPTER VII. 



THE SYMPATHETIC SYSTEM. 



PAGE 



Nerves and ganglia of the sympathetic system Their anatomical arrange- 

 ment Their physiological properties Their influence on motion and 

 sensibility Their connection with the special senses With the circula- 

 tionWith reflex action 582-592 



CHAPTER VIII. 



THE SENSES. 



General sensibility Sensations of touch Of temperature Of pain Sense 

 of taste Its necessary conditions Sense of smell Its necessary conditions 

 Sense of sight Organ of vision Physiological conditions of the sense 

 of sight Field of vision Line of direct vision Point of distinct vision 

 Accommodation of the eye for vision at different distances Apparent posi- 

 tion of objects and binocular vision Point of fixation Appreciation of 

 solidity and projection General laws of visual perception Persistence of 

 luminous impressions Negative images Sense of hearing Organ of hear- 

 ing Tympanum and chain of bones Their physiological action Labyrinth 

 Its physiological action Office of the semicircular canals Cochlea 

 Organ of Corti Physiological action of the cochlea Production and per- 

 ception of musical notes 593-666 



SECTION III. 

 REPRODUCTION. 



CHAPTER I. 



THE NATURE OF REPRODUCTION, AND THE ORIGIN OP PLANTS AND 



ANIMALS. 



Changes of structure and function in living organisms Their disappearance 

 Their reproduction Reproduction by generation Spontaneous genera- 

 tion Entozoa Infusoria Bacteria Influence of heat on the production 

 of bacteria . . . ' 667-681 



CHAPTER II. 



SEXUAL GENERATION AND THE MODE OF ITS ACCOMPLISHMENT. 



Male and female sexes Generative apparatus of flowering plants Genera- 

 tive apparatus of animals Ovaries and testicles Distinction between the 

 sexes Accessory organs of generation ...... 682-684 



