Lincoln telegraph. [volume] (Bath, Me.) 1836-1846, 1841-10-07

and partly by the depression ofair all round the
ascending columns, bringing down with it the
motion which it has above, which is known to be
greater than that which the air has in contact
with the asperties of the earth's surface The
rapid disturbance of equilibrium, which is produ-
ced by one ascending column, will tend to form
others in its neighborhood for the air being pres
sed outwards from the annnlus, at least retard-
ed on the windward side, will form other ascend
ing columns, and these will form other annuli, and
so the process will be continued. These ascend
inc columns will have tendency to approach
and finally unite.
On the leeward side Of very lofty mountains,
there cannot be rain; for as the air on the wind
ward side rises up the sides of the mountain, it
will condense all the vapor which can be con-
densed by the cold of diminished pressure, before
it reaches to the top, and even if cloud passes
over the top to the other side it would soon dis
appear, because in passing down the slope it will
come under greater pressure, and thus be dissolv-
ed by the heat produced These some of the
causes which prevent rains at particular times
and in particular localities, If, however, the air
is very hot below, with a high dew point, and no
currents of air above TO great height, then,
when up-moving current is once formed, 1T
will 90 on and increase in violence as it acquires
perpendicular elevation, especially after the cloud
begins to FORM"
The above (perhaps imperlecD synopsis OF
some leading positions, will serve to convey an
idea at least, of this theory, to our readers,
who had not the pleasure of being present. At
another time, we may lay before our readers
some other points-particularly in relation to.
"Tornadoes
When Mr.. Espy first preached this matter in
the public journals and to Congress, our readers
wi recolect that it occasoned general burst of
mirth all over the country. But he was not to
be daunted-he continued his labors, and defend
ed his theory with the perseverance and philoso-
ply of one knowing fully the frmness of his
positions, until he has come to be pretty general
ly understood; at least, by the learned, both IN
Europe and America, who are now willing 10
award him the credit Of having fortified himself
with the strongest reasons in philosophy and
scientific research in support of his theory; and
with but few exceptions to acknowledge fully
their entire correctness. Ifuo insuperable bar
riers are raised, (and of this we have not the
slightest fear,) Mr.. Espy will have performed am
invaluable service for the cause of Science and
Philosophy, which will entite him to the highest
thanks of the learned, and secure to him an envr
able rank among the master spirits of the World.
In this view, his renown will shed addtlonalus-
tire upon the National character
Ia conclusion, we sincerely hope, that Congtess
may yet be induced to afford him The means of put
ting his Iheoryto still further, aud in many re-
spects, more satisfactory test; by the grant of n
munifccnt sum, in he should succeed III "pro-
ducng IL Storm at some point in the far west.
which shall afford, in INJUNCTION with observations
in all sections oil the nation, iudubtable evidence Of
the correctness of his theory. We think, in the
present position Of his Theory, thus much is abSo-
luteIy r,qured, as duty trom The Country to the
cause Of science.