DOUBLE SEEDS SOMETIMES 



TAKE THE PLACE OF 



A STONE 



In some cases the cavity left in the 

 plum by the removal of the stone is 

 filled by the development of a double 

 seed. We have seen in other illustra- 

 tions that the hereditary forces seem 

 to be puzzled, if this expression be 

 allowed, in determining how to deal 

 with the altered conditions of the in- 

 ternal structure of a fruit that lacks 

 the supporting stone at its center. 

 One solution of the difficulty is shown 

 in this picture. 



