BIOGRAPHICAL MEMORANDA 



same day, owed their eminence in part to their environments; had 

 they been exchanged right after birth, the world would have suffered 

 the loss of a great biologist and a renowned statesman. It was impos- 

 sible to escape the impression that he indulged in this scientific dis- 

 course in order to express what was occupying his mind, and that he 

 was actually applying his evaluation of the comparative significance 

 of genetic heritage and the vicissitudes of life to himself. 



It was already well past 7 p.m. when his associate accompanied him 

 to his house through the long corridor and the room where the yeast 

 collection was stored. 'Tomorrow I won 't be here; I'll see you again 

 on Monday' . . . 



48 



