MORPHOLOGICAL IMPORTANCE OF ARRESTED ORGANS 6r 



a rudiment of a uterus which early degenerate. Arrested organs may 

 be such as generally in the existing species (or in its one sex) never 

 reached complete development ; it is only our synthetic necessity which 

 forces us always to the assumption of reduction-series, of which, however, 

 many can only claim to be fictions, imparting the aesthetic pleasure of 

 bringing a series of facts into connexion with one another. 



