ILLUSTRATIONS xvii 



FIG. PAGE 



124. Section of a portion of the necrotic zone of the decidua, &c. . 471 



1 25. Section through embryonic region of ovum .... 472 



126. Condition of the glands at the beginning of pregnancy in Man 473 



127. Median longitudinal section of embryo of 2 mm. . . . 475 



128. Diagram of stage in development of human placenta . 476 



129. Fat in a villus of human placenta ...... 479 



130. Iron granules in a villus of the placenta in Man . . . 480 



131. The first stage in the revolution of the equine foetus . . 535 



132. The foal in the normal position for delivery .... 536 



133. Virginal external os (human) 550 



134. Parous external os (human) ib. 



135. Section of mammary gland of woman ..... 556 

 ] 36. Section of mammary gland (human) during lactation . . 557 

 137. Section of mammary gland (human) in full activity . . . 558 

 13^. Section through an alveolus with fat drops in cells . . . 559 



139. Section of developing mammary gland of horse . . . 574 



140. Section of mammary gland (human) showing developing 



alveoli . . 575 



141 to 147. Diagrams from Minot's Problem of Age, Growth, 



and Death 663-9 



148. Section through ovary of woman of fifty-six showing degenera- 



tion of follicles, &c 673 



149. Section through uterine mucous membrane of woman of sixty . 674 



150. Section through vaginal mucous membrane of woman of 



sixty-one .......... 675 



151. Group of nerve cells from the first cervical ganglion of a child at 



birth .677 



152. Group of nerve cells from the first cervical ganglion of a man 



of ninety-two 678 



153. Land tortoise aged at least eighty-six belonging to M. Elie 



Metchnikoff 680 



154. Lonk sheep aged eighteen years, with her last lamb . . .681 



