THE TESTICLE AND THE OVARY 



353 



undoubted signs of degeneration. In the cases of transplantation 

 from rat to rat, as in homoplastic transplantation, uterine degenera- 

 tion was found to be arrested by a successful ovarian graft. 



The successfully transplanted ovaries exhibited all the character- 

 istic histological features of normal ovarian tissue, excepting that the 

 germinal epithelium was invariably absorbed after the lapse of a 





FIG. 94. Transverse section through normal uterus of rat. 

 (Cf, Figs. 95 and 96. From Marshall and Jolly.) 



short interval. In some cases a certain amount of degenerative 

 change took place, only certain elements of the tissue being recog- 

 nisable after the lapse of several months ; thus, the stroma might 

 present its normal appearance while the follicles had disappeared, 

 or the greater part of the graft might be composed of luteal tissue 

 alone. It was also observed that the successfully transplanted 

 ovaries underwent the same cyclical changes as normal ovaries. 

 Thus, in animals killed shortly before the commencement of the 



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