Fort Worth daily gazette. (Fort Worth, Tex.) 1882-1891, 1886-07-20
CYCLONES.
Discussion of Their Causes-Tree. Planting
the Only Preventive.
Chicago Herald


the Only Preventive.
Chicago Herald.
In the scientific column Of a Chicago
journal Of July II seems that the whole
theory Of cyclones was elaborated In a
couple Of lines. In an article for the
history Of Chicago vol. ], p. 5ss), the
writer gave the following suggestion
''But Chicago has been singularly free
from the devastating cyclones that have cut
gwathes Of ruin In all the contermnous
country, and the reasonable solution Of
this fact appears 10 be that the light,
humid atmosphere Of the lake absorbs
the approaching cyclone and dissent
mates W. The force Of q cyclone, as the
force 0i dynamite, requires repression
and compression 10 educe it, In this
necessarily brief allusion the two great
factors Of cyclones, slmOons, northefs or
other aerial commissions are stated Lega-
lively. But In these marvellous natural
commissions all tae postulates have 10 be
expressed In that manner. In fact, to
speak Of the "force" Of a cyclone Is al
most to use misnomer; for It's force IL
not that OF propulsion, but Of exhaustion
Take the winter OF Texas, the "north-
err as an example. The hot southern
sun for days aud days beats upon the
treeless plains Of "El Llano Estacado,n
or the Staked Plains, and as an inevitable
consequences the air becomes exceedingly
rafeiied and expanded This expansion
continues until the superheated portion
Is met by mass Of cool atmosphere, and
then the natural effect OF cooling and con.
densation Of the heated air ensnes. This
creates vacuum, which hiatus Is filed
by current of the cooling motor; ex-
actly on the same principle as that OF the
cooling sea breeze, explained in every
work on physical geography. Should
there be very large area OF supeTheated
air, then the continuous condensa-
tlon and rushing In OF the cold air
makes the "nOrther.n The same
causes produce the same results in both
the cyclone on land aud the tornado at
sea, and both are preiaced by a RAPIDLY
falling thermometer and barometer. And
the destruction Of the forests OF our
Northern states Is the occasion Of the
cyclone, and nothing else The trees are
natures means Of disseminating moisture
Into the upper stratum, which, by the
cooler temperature Of night, Is returned
70 the thirsty earth In the form OF dew
and removal Of the trees causes the I'M |
interrupted rarefactIon OF the air and the |
consequent cyclone. Nebraska used 10
be unenyiably distinguished by the VIC.
lencc and frequency Of It's wind storms.
How many Of those unpleasant ylsitations
has that state had since the comprehen
siye tree-planting that has been carleton
theref 10 would seem that that case
alone was sufficient proof for the success.
iul demonstration OF this axiom, without
"a - Tap al u colo
dnoed. Bat II any reader has not Deen
TO Nebraska, or has had no opportunity
10 consult the statistics relative 10 that
state, the cyclone theory advanced Is !
easily proved by visiting any large fur. I
mace. Go there and get the fireman TO |
open the door Of the furnace and listen |
70 the result; the degienlDg roar that en-. /
sues Is the cold air rushing TO take the /
place Of the rArelled and snpcrheated air /
aud Is cyclone on small scale, and II 4
we can Imagine one furnace being |
situated Immediately behind that |
where the experiment Is made, |
ana another behind that ana |
80 on ad iibitnm, then we have an exact
representation OF the cyclone trayerslng
the various areas Of superheated atmos. |
phere, until Il arrives az region where
the temperature Ia normal, when IL sub. |
sides. The rotary motion OF both the |
cyclone and the whiriwlnd is another
proof Of the verify OF this argument. Tbe
outer edge or circumference, OF both-ls
the nrst 20 be cooled, and the center Of
the rapidly chilled mass Of air ascending
lmparts 70 the whole body It's revolutions.
The motion Of the earth on It's axis has
been alleged 70 have some influence on
the rotary motion, but this has not YET
been satisfactorily demonstrated by our
scientific men 70 be accepted
Antagonists Of our theory have addueed 4
the simeon as acontrayention Of rs being |
q scientific fact, but however comfortiug 4
the apparent cOntraventi0n may be 10 he /
'iiobber Lumber Barons," II Il, In fact.
no substantial allegation adverse 20 he /