PHYSIOLOGICAL PROPERTIES OF GONADS 



381 



other than that just mentioned, remain well distended, with no 

 tendency to collapse (fig. 4). Within the tubule is a reticular- 

 like mass of material that possibly represents the old stroma of 

 the germinal epithelium, but no nuclei can be seen. 



i^-.^5^ 



,fS^S 



Fig. 3 Entire cross-section of testis graft from female guinea-pig (68 B 1). 

 seven months after transplantation, ct, connective tissue; e, epididymis; m, 

 muscle tissue surrounding the graft; st, seminiferous tubules; vd, vas deferens. 



