wo LOCK : STUDIES IN PLANT BREEDING 
In F s the plants with long and those with short intemodes were 
readily distinguishable two or three weeks after germination. At 
this time the former were, as a rule, quite twice as tall as the latter and 
perfectly distinct in appearance. The offspring of the 10 heterozy¬ 
gotes was as follows in F„ the counting being made 18 days after 
germination. A considerable number of these plants subsequently 
perished from drought, and a few had already died since germination, 
the mortality being greater in the case of the dwarf form 
No. Tall 
12 
31 
Total-245 tall to 72 dwarf, or 3-53: 1. The two groups are 
unmistakably distinct, the dwarf forms having a much stiller 
appearance and foliage somewhat darker than the tall. 
LeBgtt of Ule was found to be a chapter quite independent of the 
“ “° ne h “ ay consideral >ly modify the final height of 
0aae 0t NO ' 440 16; flowre appear 
before the 48th mtemode. The offspring of this plant, whieh resent- 
bM the parent all fell vmtirns to excessively wet weather before any 
mOS ‘ ° f ‘ hem h8d by that developed aboul 
vea may be briefly summed up as follows •—Seeds j 
the precise ratio in ““ 
rule less dimpled than large ones »n were 88 8 
large ones, so that some of the smallest of the 
