TYPES OF (ESTROUS CYCLE 



51 



fyiu 



n.c. — 



-^jr^: 



M ..) 





f5 







»^^«- 



iM;^, 





(^) 













%>■' * 





'1' fi :*>L 



-c.e. 



ii.e. 



Tf ' • 





&Jiftx-.. ''-<;xVtv 



Fig. 25. — Vaginal Smears of the Mouse during the CEstrous Cycle. 

 (a) dioestrus, (6) late prooestrus, {c) oestrus, {d) late metoestrus, {e) pregnancy 

 c.e. cornified epithelial cells; /. leucocytes; n.e. nucleated epithelial cells. 



