42 



DESCRIPTION OF PLATE III. 



Fig. 1. — Hybrids of Hickory King 9 xCuzco 759 ^ (first-generation hybrid from 

 experiment Id ) , showing increased vigor. In order to show the size as compared with 

 the parents the attendant held a stalk of Hickory King in his left hand and one of 

 Cuzco in his right hand. 



Fig. 2.— Central stalk a hybrid of Hickory King 9 X Cuzco 759,?; stalk on left 

 Hickory King, the mother parent; stalk on right Cuzco, the father parent. (Stalks 

 in each case of maximum size, the largest that could be selected from the experi- 

 mental plats.) 



