108 GLANDS IN HEALTH AND DISEASE 



readers. He is the Director of Experimental 

 Surgery at the Laboratory of Physiology of the 

 College de France, a position once held by perhaps 

 the greatest of all physiologists, Claude Bernard. 



Unlike Steinach, Voronoff decided on the graft- 

 ing procedure. His preliminary experiments on 

 animals on sheep and goats are valuable contri- 

 butions to the literature of the subject. His sub- 

 sequent work on man was limited to two recorded 

 cases, and here the graft does not refer to the sexual 

 glands at all, but to the thyroid. We are, however, 

 assured that but for the scarcity of orang-utangs 

 more cases could have been presented, and the effect 

 of the transplantation of the sex gland of the mon- 

 key to man could also have been recorded. But 

 let us proceed to those portions of VoronofFs work 

 that are of value to us. 



Dr. Voronoff tells us that he has made some 120 

 different experiments on the effects of testicular 

 grafting in sheep and goats. Grafts were at- 

 tempted on normal males and females, castrated 

 males and females, and old males incapable of re- 

 production. As the results with the females were 

 in no instance encouraging, these may be dismissed 

 altogether, and our attention confined to the males. 



Of the two methods of grafting which are em- 

 ployed, and which have already been described, 

 Dr. Voronoff chose the simpler, namely, the trans- 

 plantation under the skin or in the peritoneum. 



