PLATE 10 



EXPLANATION OF FIGURES 



33 Embryo no. 30-6, modified by ovary graft. X 3. 



34 Diagram of the urinogenital system of the same embryo. 



35 Embryo no. 29-5, modified by ovary graft. X 3. 



36 Embryo no. 17-4, modified by ovary graft. X 4. 



60 



