136 Brenchley. — On the Strength and Development of 
July 25 
Ju,ly 2 S i Jl 
Text-fig. 5. Outline sketch showing development of radicle and rootlets in grains pollinated on 
July 6, 1907. The last stage was obtained from 1904 material, but would probably correspond in 
age to grains gathered on August 11, 1907. r. radicle ; f.l.r. first pair of lateral rootlets, s.l.r. 
second pair of lateral rootlets ; f.r. fifth rootlet ; e. epiblast ; sc. scutellum. Radicle is only marked 
out on July 25, not separated from the surrounding tissue. 7 \S. x 62. 
