Proc. Roy. Socy. of Eclin. ] 
[Vol. XX VII. 
Fig. 5. — From Uterus of Wild Rat, showing large cells. ( x 500.) 
Fig. 6. — From Uterus of Bread-and-Milk-fed Rat, showing large cells. ( x 500.) 
Mr Malcolm Campbell. 
[Plate III. 
