626 
Journal of Agricultural Research voi. xxiii, No. s 
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Fig. 2o.—G raphic summary of Table XXIX, showing comparative results from planting moderately 
diseased (A) and nearly disease-free (B) seed on four different dates. Upper pair, vigor of seedlings (in 
percentages); middle pair, relation of seedling vigor to acre yield in bushels of marketable and unmarket¬ 
able shelled com; lower pair, comparative percentages by number of marketable ears, rotted ears and 
nubbins, chaffy ears and nubbins, and sound nubbins. 
