CHANGES IN THE NON-PREGNANT UTERUS 79 



Embryology. This classification, as will be seen later, is iden- 

 tical with that adopted by Heape ^ in describing the menstrual 





:;•: =!^Sfc^.-:v-.e-— .,?~--i.-i.:/-€ '•■;•-.-••••-:■■ ■■:■.■:■>:» 







■ ?SS'«--i;'-'»-^ '"••*" #::■-;->-''- ' .v>- -k-^^'. ■^>'.- ' 







■•?/••'* 



Fig. 5. — Section through wall of vagina (upper part) of monkey. 



u;, epithelium ; 6, sub-mucous layer ; f, lymphatic gland; d, nerve; 

 rj, Pacinian body ; /, fat cells. 



' Heape, "The Menstruation of Semnopithecus," &c., Phil. Trans., B., 

 vol. clxxxv., 1894, and vol. clxxxviii., 1897. A similar classification has been 

 adopted by Minot (ffumcm Embryology, 1892), who divides the menstrual 

 process into (1) Tumefaction ; (2) Menstruation ; and (3) Restoration of the 

 mucosa. 



