CONTENTS xiii 



PAGE 



MUSCLES OF THE TRUNK (continued) 



of Birds 140 



of Mammals 140 



MUSCLES OF THE DIAPHRAGM 141 



MUSCLES OF THE APPENDAGES 142 



EYE-MUSCLES 142 



VISCERAL MUSCLES 142 



of Fishes 142 



of Amphibia 143 



of Amniota 144 



D, ELECTEIC ORGANS 146 



E, NERVOUS SYSTEM AND SENSORY ORGANS 149. 



I. CENTRAL NERVOUS SYSTEM 149 



MEMBRANES OF THE BRAIN AND SPINAL CORD 151 



. 1. SPINAL CORD 152 



2. BRAIN (general description and development) 153 



of Cyclostomi 157 



of Elasmobranchii and Holocephali 159 



of Ganoidei 162 



of Teleostei 162 



of Dipnoi 165 



of Amphibia 166 



of Reptiles 167 



of Birds , . . . . 172 



of Mammals 172 



II. PERIPHERAL NERVOUS SYSTEM 177 



1. SPINAL NERVES 179 



2. CEREBRAL NERVES ...... . . 180 



Sympathetic 188 



III. SENSORY ORGANS (general description and development) ... 189 



SENSE-ORGANS OF THE INTEGUMENT 190 



a. Nerve-Eminences 190 



6. End-Buds 193 



c. Tactile Cells and Corpuscles 195 



d. Club-shaped Corpuscles 195 



OLFACTORY ORGAN (general description and development) .... 196 



of Cyclostomes 197 



of Fishes 198 



of Dipnoans 199 



of Amphibians 200 



of Reptiles 201 



of Birds 202 



of Mammals 203 



Jacobson's Organ . 205 



