Facing page 152. 







* * \ 



Av.; t sx SlK 



*>--" M :> .X 



* '*> ^:. >.: . V; - "s ; ; T* 



::.** * **. , .* . 



v * * . * * ^ * 



FIG. 48. 



Section of the normal testis, showing widely distended tubules, in which 

 spermatogenesis is taking place, and a few interstitial cells. 



X 250. 



