, 
HS Sul. vent, | 
Figs. 88 and 39 These figures are reproductions of photographs of a 27.8-mm. 
embryo, belonging to the Chicago Collection. X 28. 
Fig. 38 Through the septum ependymale and the lamina terminalis. 
Fig. 389 Through the tela chorioidea telencephali medii and the foramen 
interventriculare. 
145 
