TABLE XXIV 



made for mass weighings. 4 It is on these samples of 

 2,000 or more seeds (weighed after drying for several 

 months) 5 that the averages are based. 



Seed weight will be touched rather lightly in this paper. 

 This is in part due to the fact that the seeds for the com- 

 parison series could not be weighed individually, thus 



4 This was the plan for all but USC and FSC, where 100 seeds, or as 

 many as were available, were weighed en masse for each line. From these, 

 the ^general population mean was calculated. 



5 The plants were harvested and dried in an empty greenhouse in the 

 early autumn of 1910; stored in an unheated building for the early part of 

 the winter; counted during a period extending from January to early 

 A Pnl; and left in the laboratory till weighing, some time in June. 



