XXVI 



LIST OF ILLUSTRATIONS. 



53. Diagrams of the Development of the Three Layers of the 1 



Blastodermic Membrane . j 



54. Similar Diagrams Antero-posterior Sections . 



55. Diagram of the Membranes of the Ovum . 



56. Human Ovum, 12 to 13 days . ' . 



57. Human Ovum, 15 days . . . . .''., 



58. Embryo from the preceding Ovum . . --. 



59. Human Ovum in the Fourth Week . . . 



60. Face of an Embryo of 25 to 28 days .... 



61. Longitudinal Section of Head of Embryo at Four Weeks 



62. Section of the Medulla of Embryo at Six Weeks . ; . 



63. Diagram of Development of Lens . . . . 



64. Heart of Embryo, Fifth Week . .... 



65. Diagram of Formation of the Aortic Arches and Large Arteries 



66. Diagram of Formation of the Main Systematic Yeins . . 



67. Development of External Genital Organs . ,' 



Osteology. 



68. A Cervical Vertebra . . ... . 



69. Atlas ........ 



70. Axis . . . . . . , 



71. Seventh Cervical Vertebra . . . . " 



72. A Dorsal Vertebra .'..... 



73. Peculiar Dorsal Vertebrae . . . ' 



74. A Lumbar Vertebra ...... 



75 to 80. Development of a Vertebra . . . 



81. Sacrum, anterior surface ..... 



82. Vertical Section of the Sacrum .... 



83. Sacrum, posterior surface ..... 

 84 to 86. Development of Sacrum ..... 



87. Coccyx, anterior and posterior surfaces 



88. Lateral View of Spine . . . . . ' . 



89. Occipital Bone, outer surface ..... 



90. Occipital Bone, inner surface . . . . 



91. Occipital Bone, development of 



92. Parietal Bone, external surface . . . . 



93. Parietal Bone, internal surface . . . 



94. Frontal Bone, outer surface . . 



95. Frontal Bone, inner surface ..... 



96. Frontal Bone at Birth . . . 



97. Temporal Bone, outer surface . . . ., 



98. Temporal Bone, inner surface ..... 



99. Temporal Bone, petrous portion .... 



100. Temporal Bone, development of .... 



101. Sphenoid Bone, superior surface . . . 



102. Sphenoid Bone, anterior surface . . 



103. Sphenoid Bone, posterior surface . . 



104. Plan of the Development of Sphenoid . . .... 



105. Ethmoid Bone, outer surface . . 



106. Perpendicular Plate of Ethmoid, enlarged 



107. Ethmoid Bone, inner surface of right lateral mass, enlarged . 



108. Skull at birth, showing the anterior and posterior Fontanelles 



109. Lateral Fontanelles . . 



110. Nasal Bone, outer surface ' '. , . 



111. Nasal Bone, inner surface . . . ; 



112. Superior Maxillary Bone, outer surface 



118. Superior Maxillary Bone, inner surface . . 



114. Development of Superior Maxillary Bone . . 



115. Lachrymal Bone, outer surface . . . t* 



116. Malar Bone, outer surface . . 



117. Malar Bone, inner surface . 



118. Palate Bone, interior view, enlarged .... 



119. Palate Bone, posterior view, enlarged 



120. Inferior Turbinated Bone, inner surface . . 



121. Inferior Turbinated Bone, outer surface . 



122. "Vomer ....... 



123. Lower Jaw, outer surface . 



124. Lower Jaw, inner surface ..... 



