182 General Notes. 
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to its first flexion, and in four hours it attains its ma mo 
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w 
through red glass. M. Rodier was unable to detect that the leaves 
have any motion of their own, independent of that of the stem.— 
A. W. Bennett. 
Tue EucaLyPTUS IN CALIFORNIA.—Last season the Centra 
Pacific Railroad Co. planted 300,000 gum trees on the lines 0 A 
their roads. This winter they intend to set out 700,000 more, — 
Company are now planting 2,000 additional trees, placing pes A 
in every available nook and corner around the works and along — 
the track by the slough. ; T 
GERMINATION OF Acorns.—In this place (Lansing, Michigan) A 
white oak acorns germinate in autumn. The radical pushes our 
and down into the leaves or soil often for three inches or er 
The petioles of the cotyledons grow out from the shell a oe 
half an inch. This enables the plumule to find plenty of ea = 
to start in spring. It is quite common to find two embryos. i. d 
one acorn, and three embryos are not very rare.— W. F. Beat. 
