rvi 



LIST OF WOODCUT& 



49. Gastrula of Chiok . 



50, 61. Four secondary germ- 



layers . 



62-56. Diagrammatic longitu- 

 dinal and transverse sec- 

 tions through the ideal 

 Primitive Vertebrate 



57, 68. m m 



59. » * 



60. » m 



61. ft M 



62-69. Diagrammatic trans- 

 verse sections through 

 the most important germ- 

 forms of the ideal Primi- 

 tive Vertebrate 



70. Diagrammatio transverse 



sections through various 

 mammalian germs (ex- 

 plaining the separation 

 of the intestine from the 

 yelk-sac). . 



71. Gastrula of Mammal . 



72. Intestinal germ-vesiole of 



Mammal 



73. Transverse section through 



the intestinal germ- 

 vesicle of Mammal 



74. Bxoderm-cells of the above 



75. Entoderm-oells of the above 



76. Transverse section through 



germ-area . . 

 77-81. Intestinal germ-vwiicle 



of Babbit 

 82, 83. Germ-area of Rabbit . 



M. » » 



IK. •  



?AOK 



228 



236 



256 

 269 

 263 

 264 

 267 



276 



283 



288 



289 



289 

 290 

 290 



293 



294 



296 

 297 

 298 



mm 



86. Sole -shaped germ-shield 



of Dog. 



87. Sole-shaped germ-shield 



of Chick 



88. Transverse section 



through germ-shield 



89. „ ' m 



9& *» t$ 



91. 



92. 



93. 



n 



n » 



94. Development of egg -mem- 



branes . 



95. Transverse section 



through germ of Chick . 

 96,97. „ „ 



98. ,, w 



99. „ „ 



100. Separation of the intes- 



tine from the yelk- sac 

 (diagrammatio) 



101. Longitudinal section 



through embryo Chick . 



102. Longitudinal section 



through head of an 

 embryo Chick 



103-105. Lyre-shaped Chick 

 embryo 



106, 107. Germ-diso or germ- 

 area of Babbit 



108,109. „ „ 



110, 111. Skeleton of Man 



112. Transverse section 



through germ of Chick . 



113. Human neck-vertebra 



114. Human ohest- vertebra . 

 116. Human lumbar-vertebra . 



PAOK 



298 



298 



300 

 301 

 802 

 804 

 306 

 309 



312 



317 

 318 

 319 

 331 



838 

 336 



887 

 842 



844 



846 

 861 



862 

 864 

 364 

 864 



