30 



H. H. Love and C. E. Leighty 

 9 10 11 12 13 14 15 16 17 18 19 20 



40-45 





























45-50 





























50-55 















' 















55-60 















< 



1 











60-65 

















I 











65-70 

















V 











70-75 

















\ ^ 











75-80 

















lo 











80-85 

















1 < 



} 









85-90 

















I 



> 









90-95 

















\ 











Chaet 4. — Regression for average height of plant and average weight of kernels 

 for 1909, from Fig. 16 



12 13 14 15 16 17 18 19 20 21 22 23 24 



45-50 

















> 













50-55 











o 



















55-60 































60-65 































65-70 













c 

















70-75 













o 

















75-80 













o 

















80-85 













o 

















85-90 





























90-95 















o 















Chart 5. — Regression for average height of plant and average weight of kernels for 



from Fig. 17 



1910, 



