OOF Wary y oO Ne ys ae mtr soy 
396 PRINCIPLES OF BOW ANY, ETC. 
‘been found in Siberia, Tartary, Barbary, Buehary, 
China, Gonchinchina, and J Japan. ‘The ‘Yypha lattifolic 
grows in Europe, North America, in Jamaica, in Sibe- 
ria, China, and Bengal. 'Vhe great number of aquatic 
birds, which by a peeniti instinct annually change 
a cold chime for a wariner, are the reason of this 
sreat dissemination of aquatic plants. Most of the 
seeds of these ripen at the very period, when these 
birds leave their temporary abode. ‘Phey adhere 
oS 
firmly to their feathers, or when swallowed by them, 
are not unfrequently thrown out with their exete- 
thents, entirely unaltered, 
§ 361. 
Those plants which gow at the bottom of ‘the 
sea thrive m almost all clmmates, because the oceat 
never either becomes completely cold or ‘warm to 
the very bottom, and therefore has. everywliere’ al- 
most an equal temperature. Fucus natans, 2 very 
common sea plant; which is well known under 
the name of sea- ey) or sea-grass, occurs under 
the equator as well as near both poles. As the 
number of various sea plants is immense, many 
may be found in every quarter of the Cui and 
ihe nly difference is, that some require a more con- 
centrated sea water, others a variety of soils. Others 
are either higher or lower in the water, but climate 
has no influence but upon such sea plants as occur 
in shallow water. It is commonly the case, that the 
hills or mountains under the surface of the sea, are 
richer in pies than the valleys and deep abhor S$ ir 
the 
the bottom of ithe Sea. 
SOc 
