xx Illustrations 



FIGURE PACK 



90. Section through the Embryonic Shield of a 



Dog. (From Kollmann, after Bonnet) . 293 



91. Surface View of the Embryonic Shield of a 



Dog. Magnified 120 Diameters. (From 

 Kollmann, after Bonnet) .... 294 



92. Embryonic Area of a Dog, Showing the Primi- 



tive Streak. Magnified 120 Diameters. 

 (From Kollmann, after Bonnet) . . 295 



93. Diagrams Illustrating the Relations of the 



Allantois, etc., in Unguiculate Mammals. 

 (From Minot) 297 



94. Diagram of an Early Stage of a Primate 



Embryo. (From Minot) .... 298 



95. Sagittal Section of a Rabbit Embryo and Blasto- 



dermic Vesicle, at the End of the Ninth 

 Day. (From Marshall, after Van Beneden 

 and Julin) 299 



96. Sagittal Section of a Rabbit Embryo at the End 



of the Twelfth Day. (From Marshall, after 

 Van Beneden and Julin) .... 300 



97. Human Ovum. Age Seven Weeks. (From 



Kollmann) 302 



98. Semi-diagrammatic Outline of an Antero-pos- 



terior Section of a Human Uterus. (From 

 Minot, after Allen Thompson) . . . 303 



99. Human Uterus. About 40 Days' Pregnancy. 



(From Minot, after Coste) .... 305 



100. Transverse Sections of Two Human Umbilical 



Cords. (From Minot) ... 308 



