MIRACLES OF SCIENCE 



method and its results, Dr. Carrel received the Nobel 

 prize in medicine and physiology in 1912. 



MULTIPLE PARENTAGE 



From the present standpoint perhaps the most 

 interesting application of Dr. Carrel's method of 

 transplanting organs has been made by Professor 

 William E. Castle, of Harvard University. Profes- 

 sor Castle has experimented in the breeding of 

 guinea pigs, until he has developed white races and 

 black races of these animals which always breed ab- 

 solutely true. The experiment to which I refer con- 

 sisted in removing the ovaries of a white guinea pig 

 and replacing them with the ovaries of a black indi- 

 vidual. The white individual mated with an albino 

 thereafter produced black offspring. 



It would therefore appear that the maternal her- 

 itage of these black offspring came from an animal 

 that did not bear them, an animal that had perhaps 

 died long before. Meantime, it would be a misuse of 

 language to deny motherhood of the offspring to the 

 white guinea pig that did actually bear them. 



Shall we say, then, that the offspring had two 

 mothers? 



If so, we are led to consider the question of per- 

 sonality from a new angle ; for an organism with 

 three parents is an anomaly that lies outside the 

 domain of antecedent observation or experience any- 

 where in the organic world. 



In yet another way the question of personality 

 arises in connection with these new experiments of 

 transplanting organs or members from one individual 



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