LIST OF ILLUSTRATIONS XI 



Fig. Page 



85B. Arterial System of a Man 1 70 



86a, b, c. Development of Heart 172-173 



87. Development of Aortic Arches i75 



88. Modifications of Aortic Arches in Vertebrates 176 



89. Development of Venous System 178 



90. Composite Diagram of Embr^'onic Veins 180 



91. Ventral Aspect of Chief Lymphatic Vessels of the Cat 185 



92. Photograph of the Lymphatic Capillaries and Vessels of Cat's Ear 186 



93. Diagrammatic Transverse Section of the Chest 192 



94. Photograph of a Lung Corrosion of a Puma 193 



95. Diagrammatic View of the Lung i95 



96. Photograph of Human Heart and Lungs 196 



97. Ventral Aspect of Female Urogenital System 199 



98. Median Longitudinal Section of a Kidney 200 



99. Diagram of Structure of Kidney 200 



100. Section of Ovary 202 



1 01. Ventral Aspect of Male Reproductive Organs 204 



102. Spermatozoa 205 



103. Dorsal Aspect of the Brain 211 



104. Ventral Aspect of the Brain 213 



105. Diagram of the Ventricles • . 215 



106. Sagittal Section of the Brain 216 



107. Dorsal Aspect of the Brain with the Cerebellum and Portion of Cere- 



brum Removed 218 



108. Cross-section of the Brain Caudad of the Optic Chiasm 220 



109. Cross-section of the Brain through Anterior Commissure 222 



no. Photomicrograph of Cross-section of Human Spinal Cord 226 



111. Diagrammatic Section of Spinal Cord 227 



112. Nerve-cell 228 



113. Diagram of the Relation of Cells and Fibers in the Spinal Cord 229 



1 14. Ventral Aspect of the Branchial Plexus 234 



115. Ventral Aspect of the Nerves of the Pelvic Limb 238 



116. Cranial Half of Sympathetic System 241 



117. Caudal Half of Sympathetic System 242 



118. Pacinian Corpuscle 245 



1 19. Longitudinal Section of the Eye 247 



120. Diagram of the Mammalian Ear 250 



121. Section of the Cochlea of the Calf 251 



122. Photograph of Human Brain -. 253 



123. Brain of the Rabbit 254 



