September 1955]                                                             E. S. E. HAFEZ                                                                                   237

[NLS note: a graphic appears here - see image of page]

Fig. 1. Histograms showing the weight of ovaries of pregnant buffaloes at different stages of pregnancy. Each column represents the weight
of two ovaries at a certain age of gestation, the white area represents the C. L. ovary and the black area the N. C. L. ovary.