EFFECTS OF MUTILATING THE SEEDS OF COKN". 13 



A summary of the results of the experiments with mutilated 

 germs follows : 



(1) The entire embryo was not essential to germination and de- 

 velopment into normal plants. 



(2) Normal plants were grown from seeds that had been cut into 

 half sections through both the embryo and endosperm. 



(3) In the laboratory 100 seedlings showing plumule and root de- 

 velopment were obtained from 71 seeds sectioned longitudinally. 



(4) The tip portions of the cross sections developed complete plants, 

 and there was no development from the crown portions. 



(5) There was no regeneration of one organ from another. 



