Selection in Agriculture and Horticulture. 73 



were usually too poor in seeds to be of any use for 

 continuing the experiment. 



i ?o » n K 19 20 it ?♦ te u 



1S9i 



1893 



1392 



1391 



1S89 



ias8 



1SS7 



1886 



8 10 12 1h 16 IS 20 



2if 2t> 



Fig. i8. Pedigree of an Experiment in Selection with 

 Maize. The numbers at the top and bottom of the 

 figure show the number of rows in the ear. The 

 experiment began in 1887 ; the hnes for 1886 give 

 the characters of the race with which I started. 



The left-hand line joins the ends of the middle rays, 

 which correspond to the apices of the curves for each 



