PLATE LI 



Fig. I. — Ovary of a pullet, showing the follicles which productd the yolks for the 

 double-yolked egg shown in Plate XLVIII, figure i. 



Fig. 2. — Ovary of a pullet, showing follicles which produced the yolks for a double- 

 yolked egg similar in structure to the one shown in Plate XLVIII, figure 2. 

 75012°— 15 3 



