100 



THE I'HYSIOLOGY OF REPRODUCTION 



more especially in dealing with the development and retrogression 

 of the corpus luteum (p. 373). The mammary changes are also 

 correlated (p. 617). 



The Cycle in Eopen'I's 



Considerable attention has recently been paid to the uterine 

 changes in Rodents. In the ral>hit it had long ago been noticed that 

 the \iterns is swollen and congested during " heat," and the same 



Fig. 19. — Section thiough portinn of prorestrous uterine mucosa of rabbit, 

 showing glandular activity, with leucoc>'tes inside gland and passing 

 thiough gland epithelium. (From Blair Bell, in I'l-a/-. fini/. S'oc. Med.) 



observation was made in the marmot (S^MrriiopJrilus cifiUus)} Lataste ^ 

 descriljcd procfstrous growth and congestion in the uterus of several 

 Murida% and this was stated to be followed Ijy a sanguineous discharge 

 from the vaginal opening. Lataste also descriljed desquamation of 

 the uterine epithelium, liut he appears to have regarded this process 

 as taking place independently nf "heat." 



More recently Ki'migstein •' has recorded cyclical changes in 



1 Kejsek, '' Anheftung (Implantation) des Siiugethiere.s an die Uteru.swand, 

 insbesondere des Eies von SpermnpJiihix ritillns," Arcli. f. 2fil,r. J nut., vol. Ixiii., 

 1904. 



^ Lataste, Bechin-hes ih' ZoHhiijuc •'»;' h-s Mn'inmiferes de Vurdre des Rongeurs, 

 Bordeaux, 1887. 



3 Konigstein, " Die Veriinderungen der Genitalschleimhaut wahrend der 

 firaviditiit und Bninst liei einigeii Nagern," Pfliifier's Arcli., vol. cxix., 1907. 



