Proc. Hoy. Socy. of Eain. ] 
[Vol. XXVII 
Fig. 3. — Uterus of Adult Rat, Bread-aud-Milk-fed. ( x 30.) 
Fig. 4. — Uterus of Adult Rat, Meat-fed. ( x 30.) 
Mr Malcolm Campbell. 
[Plate II. 
