62 



INTERNAL SECRETIONS OF THE OVARY 



tion on Semnopithecus entellus, that a regular menstrual cycle 

 may be maintained in the apparent absence of an ovarian cycle, 

 has been fully substantiated. 



The uterine cycle. The uterine cycle in at least two species of 

 monkey and in the human has been fully worked out. The 

 writings of Heape on Seninopithecus (284) and Macacus rhesus 



in. 



Fig. 35. — Endometrium of human Uterus on the first day of 

 Menstruation, showing destruction of Epithelium and 

 superficial Stroma. 



g. gland; /. lumen; ni. muscle; s. stroma. 

 (After Shaw). 



(285), of Corner (123) and Allen (12, 14, 15, i6j on Macacus, of 

 Van Herwerden (297) on Cercocehus} and of Hitschmann and 

 Adler (307), Webster (632), Corner (125, 126), and Shaw (259) 

 on the human should be consulted for details and references. 



The uterine cycles in monkeys and women appear to be 

 identical in all essential features, and Milnes Marshall's (456) 

 original division of the phases in the human, identical with 



^ More probably Macacus cynomologos. 



