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Journal of Agricultural Research 
Vol, XI, No. 4 
Fig. 13. Graphs showing the standard deviation of the length of the ears in the two-ear strains of Tnrlian 
com, 1908-1916. 
Fig. 14.—Graphs showing the standard deviation of the circumference of the ears in the two-ear strains of 
Indian corn, 1908-1916. 
