110 



LIVING PLANTS 



The diagram as a whole shows the variation 

 at different parts of the ear, the butt being to 

 the left and the tip to the right. 



Thus far we have given the results of ex- 

 periments in all of w^hich the seed was pro- 

 vided the same ground space without regard 



19 

 18 

 17 

 16 

 15 

 14 

 13 

 12 

 11 

 10 



3 2 1 M 1 2 3 4 5 6 7 8 9 lO 11 12 13 14 15 16 



Fig. 10. — Illustrating the product from lars:e and small seeds 

 of corn. Data for the curves were obtained by weighing the 

 kernels on each ear of the product by fifties from base to tip. 

 The heaviest lot of fifty came not far from the base. These 

 maxima were averaged and marked "M," and the next fifties 

 right and left in succession w^ere averaged in the same way. 

 Figures along the bottom of the diagram show position of 

 each fifty seeds, and along the side the average weight in 

 grams. The position of the ear of corn above corresponds to 

 the curves. 



to size, and the data show that the large seeds 

 give larger returns than the small seeds. It 

 would be natural to suppose that if the small 



