138 Brenchley . — On the Strength and Development of 
appear as very fine networks spread out between the intruding starch 
grains. 
8. The development of the embryo is normal. A fifth lateral rootlet 
is formed in addition to the two pairs of laterals usually described, lying 
between them on the dorsal side, which does not appear in germina- 
tion until quite late, after the other rootlets and the plumule are well 
developed. 
In conclusion, I have to express my thanks to Mr. A. D. Hall, at 
whose suggestion the work was undertaken, for the valuable advice he has 
given me all through the progress of the investigation. 
November , 1908. 
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