112 



COMN CROPS 



Morrow and Gardner's experiments in 1892 at the Illi- 

 nois Agricultural Experiment Station, illustrates : ^ — 



TABLE XVIII 



Vametit 



Bushels of 



AlR-DBY COBN 



Burr's White . . . 

 Cranberry .... 



Average . . . 



Cross .... 



Burr's White . . . 

 Helm's Improved 



Average . . . 



Cross .... 



Leaming 



Golden Beauty . . 



Average . 



Cross .... 



Champion White Pearl 

 Leaming 



Average ... 



Cross .... 



Burr's White . . 



Edmonds .... 

 Average . . . , 

 Cross .... 



64.2 

 61.6 

 62.9 

 67.1 



64.2 

 79.2 

 71.7 

 73.1 



73.6 

 65.1 

 69.3 

 86.2 



60.6 

 73.6 

 67.1 

 76.2 



64.2 

 58.4 

 61.3 



78.5 



The average yield of hybrids in the five tests was 9.7 

 bushels above the average of the parents and 4.5 bushels 

 above the average of the highest parents. It is also 

 shown, by this and other data, that certain crosses give 



1 lU. Agr. Exp. Sta., Bui. 26. 1902. 



