106 THE PHYSIOLOGY OF REPRODUCTION 



[Spermophilm citillus)} Lataste - has described prooesta'ous 

 growth and congestion in the uterus of several Murida?, 

 and this is stated to be followed by a sanguineous dis- 

 charge from the original opening. Lataste has also described 

 desquamation of the uterine epithelium, but he appears to 

 regard this process as taking place independently of " heat." 

 More recently Konigstein ^ has recorded C3^chcal changes in 



Fig. 17. — Section through portion of prooestrous uterine mucosa of 

 rabbit showing glandular activity. (From Blair Bell, in Proc. 

 Roy. Sor. Medicine.) 



several Rodents (rat, guinea-pig, &c.), and has described 

 prooestrous desquamation of the uterine epithelium, followed 

 by recuperation. The degenerative changes are accompanied 



1 Rejsek, " Anhcftung (Implantation) des Siiugethieres an die Uteruswand, 

 insbesondere dcs Eies von SiyermoiAilus citillus" Arch. f. Mikr. Anat, vol. Ixiii., 

 1904. 



- Lataste, Itcchcrclics de Zoithi'iue sur Ics Mammiftres dc I'ordre dcs Rowjcurs, 

 Bordeau.^, 18S7. 



' Konig.-tein, ''Die Veriinderungen der Genitalschlcimhaut wiihrend der 

 Gravidittit und Brunst bei einigen Nagern," Pjliigcr's Arch., vol. csix., 1907. 



