EFFECTS OF EXPOSING SEEDS 



"3 



May 12, ID A. M 

 A 



i,Soo,ooo X 

 7.00 mm. 

 0.00 

 9.00 

 5.00 



B 



i,5cx),ooo X 

 1 8. 00 mm. 



7.00 

 16.00 

 13.00 



C 



io,oooX 

 18.00 mm. 

 13.00 

 10.00 

 13-50 



D 



Ra. Tel. 

 0.00 mm. 

 11.50 

 15.00 

 20.00 



E 



Control 

 44.00 mm. 

 37.00 

 37.00 

 36.00 



21.00 mm. 

 7.00 mm. 



120 



54.00 mm. 

 13.50 mm. 



54.50 mm. 

 13.62 mm. 



46.50 mm. 

 15.50 mm. 



154.00 mm. 

 38.50 mm. 



10 



13 



14 



15 



11 12 



Day of month 



Fig. 12. Effect on the Growth of Zea Mays of Exposing the Grains, before Plant- 

 ing, for 33 Hours, to Rays from Radium of Different Degrees of Activity. 



Ma}' 14, 10 A. M. 



