[52] 



find the key to the secret of life itself. And 

 what a Grecian he has become ! Listen to 

 this account, which Aristotle would under- 

 stand much better than most of us. 



The karyogranulomes, not the idiogran- 

 ulomes or microsomenstratum in the pro- 

 toplasm of the spermatogonia, unite into 

 the idiosphaerosome, acrosoma of Lenhos- 

 sek, a protean phase, as the idiosphaero- 

 some differentiates into an idiocryptosome 

 and an idiocalyptosome, both surrounded 

 by the idiosphaerotheca, the archoplasmic 

 vesicle ; but the idioectosome disappears 

 in the metamorphosis of the spermatid into 

 a sphere, the idiophtharosome. The sepa- 

 ration of the calyptosome from the crypto- 

 some antedates the transformation of the 

 idiosphaerotheca into the spermiocalyptro- 

 theca. 1 



Or take a more practical if less Cratylean 



1 Of course I have made this up out of a recent number of the 

 American Journal of Anatomy, 24, 1. 



