Hall. — Mesonephros in Amphibia. 



PLATE 6. 



Cross-sections of Rana. 



Figs. 68-77. Ten consecutive sections tiiroiigli the Miillerian evaginations of the 

 right side of a larva 34 mm. long. The fundament is seen to be 

 resolvable into an anterior, questionable cvagination (Fig. 68) and two 

 distinct ones (Figs. 74, 7G). P'igure 77 is on Plate 7. X 315. 



