LIST OF ILLUSTRATIONS xv 



PACE 



52. Early stage in luteinization of the Graafian follicle of 



mouse by sodium hydroxide extract of anterior 

 pituitary body . . . . . . -155 



53. Later stage of luteinization ...... 155 



54. Atretic corpus luteum in untreated mouse . . . 156 



55. Ovary of mouse injected with sodium hydroxide extract 



of anterior pituitary at three weeks old . . 156 



56. Ovary of rabbit injected with sodium hydroxide extract 



of anterior pituitary ...... 157 



57. Luteal tissue of ovary of Fig. 56 . . . . .158 



58. Luteal tissue produced in sterilized ovary of mouse by 



anterior pituitary preparations . . . .159 



59. Effect of anterior pituitary implants on ovary of im- 



mature rat ........ 160 



60. Effect of anterior pituitar}^ implants on ovary of im- 



mature rat ........ 161 



61. Group of tubal ova following super-ovulation . . 162 



62. Effect of oestrin and anterior pituitary extracts on uterus 



and ovary of young mouse . . . . .165 



63. Diagram of amount of oestrin and anterior pituitary 



substance in the urine of pregnancy . . .167 



64. Uterus of mouse (after sterile copulation)with deciduoma 185 



65. Uterus of mouse with deciduoma ..... 187 



66. Photograph of mammary gland of rabbit during pseudo- 



pregnancy prolonged by anterior pituitary extracts 194 



67. Section of gland shown in Fig. 66 . . . . . 195 



68. Effect of oestrin on the contraction of an isolated 



guinea-pig uterus ....... 203 



69. Action of oestrin in sensitizing an isolated uterus to 



oxytocin ......... 205 



