CONTENTS. 



PACE 



Preface ........... vii 



CHAP. 



I. The History of the Involuntary Nervous System . . i 



II. The Characteristic Motor Functions of the Nerve Cells 

 belonging to the Thoracico-lumbar Outflow of Con- 

 nector Nerves ; usually called the Sympathetic Nerve 

 Cells 31 



III. The Characteristic Motor Functions of the Nerve Cells 



belonging to the Bulbo-sacral Outflow of Connector 

 Nerves ......... 50 



IV. The Characteristic Motor Functions of the Nerve Cells 



belonging to the Mid-brain or Prosomatic Outflow of 

 Connector Nerves ....... 65 



V. The Inhibitory Nerves 68 



VI. The Inhibitory Nerves to the Vascular System ... 79 



VII. The Inhibitory Nerves to the Involuntary Muscles of the 



Eye ......... 98 



VIII. The Rhythmic and Peristaltic Movements in the Involun- 

 tary Muscles of the Vertebrate ..... 99 



IX. The Innervation of Glandular Structures . . . .123 



X. The Connector Neurons of the Involuntary Nervous 



System 130 



XI. The Phylogenetic Origin of the Sympathetic Nervous 



System 139 



XII. Summary . . . . . . . . .150 



Bibliography . 161 



Index . . . . . . . . . . -175 



ix 



