352 THE PHYSIOLOGY OF REPRODUCTION 



planting the ovaries to new situations. Other exj)eriments were 

 undertaken in which the (ivaries wei-e simply removed without being 

 transplanted. The rats wei'e killed at inter^'als ^'arying from one 

 to fourteen months after the operation. In the control animals 



,;,_.^\5.-j.>\.v'',;:"V'''''"'''''^'"'-'' -'.''VV'.^v'Hj^ ■ " '~i ] 



.C-M-- -"' 





4' 





Fig, 9.3. — Sectimi tbiough ovary (if rat after ti'ansplaiitaticm on to peii- 

 toneum, showing corpora lutea and small follicle with ovum. (From 

 Marshall and Jolly.) 



pronounced fibrosis ov other atrophic appearances were always found 

 in the uterus. On the other hand, in those animals in which ovaries 

 had been successfully transplanted on to abnormal positions (such as 

 on to the ^^entral peritoneum or into one of the kidneys) the uterus 

 was found undegenerated. If, however, the ovarian graft failed to 

 " take," or was only paitiall}' successful, the uterus presented 



