{"newspaper_name": "The Yazoo City Whig.", "edition": "01", "page": "pNone", "byline": ""}
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CLIMATE. E.-AggiculturaIists and others
whose pursuits are liable to be affected by
the influence of climate, are not as qeneallv
aware as they ought TO be, that vegetation
is as powerfully affected by difference of ell
ovation as by difference of iafitude-Norh
or South. On this point il is observed By
Johnson in paper on the Agriculture OF
different countries: ssKegetation in ascend
ing above the level Of the sea nndergoes
lmodi6cations analogous 10 those which a.
tend its progress from the line TO eithe palc,
with this distinction, that in the last case,
the phenomina succeed by almost impercep:
I tible gradations, while they crowd upon and
follow each other in rapid succession on tbs
ascent of mountains. The height of 1850
or 5000 yards, in the hottest parts of the
globe, produces changes as distinct as 2OC0
leagues or mere, which lie between the eaua.
tor and the polar regions. The three class
es these rapid changes all re appear within
this space, viz: Diminution of heat, dryness
Of the air, protracted duration of light The
higher we ascend the shallower TIE upper
stratum of air becomes; thence taes excess
i've cold at great heights. The weight Of
the atmosphere, which, at the level Of the
sea, supports column Of mercury equal 10
% inches. dimiaishes as we ascend, So ihat


at considerable elevations il will only sup


port column Of considerably less height
"a power which gradually dilninishes as we


ascend. a consequence OF this fact is that


the vaporization Of Guids takesplace on high


mountains at q very low degree Of beat


Notwithstanding this, however, the decrease
sf tempeatnFe is 50 great that the ambient


air IS very slightly impregnated with moist
lure