a LS RN a en OT aE a Te ree 
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ye ren rt nn Mien) oh Sent No pene AOR eer 
joker aca cca = si38 
pr 4: 
* 
L, Lesquereux on the Origin and Formation of Prairies. 25 
by humidity of the soil, and to assert that the high prairies, 
under lacustrine influence, owe their origin to quite another 
cause? Does the difference of time modify the action of lacus- 
trine influence? 
hough a number of fruits and seeds are brought by currents 
from the shores of America to those of Scotia and Norway, these 
se 0 not, or only very rarely, germinate, even under careful 
cultivation.’ The marine cocoa-nut (Lodoicea Seychellarum Lab.) 
ae of some seeds for centuries, have been quoted by authors. 
ic sub- 
stances, that we should consider the case of the preserved vital- 
* Alph. De Candolle Geogr. Bot., p.616.  * Hooker’s Bot. Mag, t.2734. 
* Annales des Seiennen Saks vy, 378. 
Am. Joux. Sci.—Szconp Seis, Vou. XL, No. 118—Juzy, 1865. 
a 
