BASALTIC ROCKS 
AND 
CASCADE OF REGLA. 
\ — 
PLATE XXII. 
In changing our latitude and climate, we see a 
change in the aspect of organic nature, in the 
form of animals and of nlants, which impresses 
a peculiar character on every zone. With the 
exception of some aquatic and cryptogamous 
vegetables, the soil in every region is covered 
wdth different plants. It is not so with inanimate 
nature, with that aggregation of earthy sub- 
stances, which covers the surface of our planet ; 
the same decomposed granite, on which, amid 
the frosts of Lapland, the vacciniums, the an- 
dromedas, and the moss that nourishes the rein- 
deer, vegetate, is found again in those bowers 
of fern-trees, of palms, and of heliconia, the 
shining foliage of which unfolds itself under the 
influence of the equatorial heats. When at the 
end of a long voyage, after passing from one 
