

Fig. 1 





m^' : m 





Fig. 2 



Fig. 



F" 



# 



Fig. -4 



Fig. 5 



Fig. 6 



^^r??^S^-' 



>r: 





-'•:,' ,* 





Fig. 7 



Fig. 8 



Plate VI. (From the Proceedings of the Royal Society.) 



Fig. 1, Three ova in the cumulus mass recovered from the fallopian tubes of 

 rabbit doe 123^ hours after a sterile mating. Fig. 2, An unfertilized ovum still in 

 the cumulus mass 16 hours after a sterile mating. Fig. 3, Another 16-hour ovum 

 free of the cumulus mass. Fig. 4, An ovum recovered 19 hours and 5 minutes after 

 a sterile mating with no adherent follicle cells. Fig. 5, An ovum recovered 243^ hours 

 after a sterile mating showing a definite albumin coating. Figs. 6-9, All from sterile 

 matings at the following intervals after sterile copulation: 6. 43 hours, 30 minutes, 

 7. 73 hours, 40 minutes, 8 and 9. 96 hours, 45 minutes. 



69 



