The Rodney telegraph. (Rodney, Miss.) 1838-1840, 1839-06-06

l..
Mr.. Espy, the great Rain King, relics
make rsin At any given time, and place
may choose. As 10 what may Le The resu
Of his specuIasions, we leave our readers
Judge:
Messrs. Editors Knowing the difficult,
It not the impossibility, Of making the sui
Ject ineligible in short newspaper article
it il with reluctance that am now induced
after much solicitation from my friends, bot,
near and remote, TO give very brief sum
mary Of the reasons and facts which hav,
led the to desire that an experiment shout,
Dc made to see whether rain may be produ
ced art'f'ciaily IN time Of drought.
+ The documents which have collected
Oh this subject, If they do not prove that ihs
experiment will succeed, do at least proye
that i ought to be tried;3 this trust vii
most satisfactorily appear when they shall
De published entire. In the mean time !,
has become necessary to present to the uub.
i'c something on the subject, lest longer 81
lence might be construed into an abandon.
ment Of the project.
LIST. It IS known by experiment that If air
should be expanded into double the volume
by diminished pressure, it would be cooled
about ninety degrees Of Fahrenheit.
I'd. have shown by experiment, Tint il
a'r al the common due point in the Summer
season IN time Of drought, seventy-one de-
grees should 60 up in column to a height
sufhclent to expand it by diminished pres
sure into double the volume, it would con-
dense into water or visible cloud. nv the
cold OF expansion, more than one half Of ;,s
vapor-a quantity sufficient to- produce
nearly three inches of rain,
Sd. 1t is known by chemical PRINCIPLES.
tnat the caloric of elasticity given out during
Inc condensation Of this vapor would he
equal to about &c, eco tons of anthracite coal
burnt On each square mile over which the
cloud extended. "'e
4lh. have shown by exner;men, rsee
Saturday Courier, Of March Is, 1897 that
this caloric Of elasticity would prevent the
AR from cooling only about half as much as
It would it it had no vapor in it, or about az
degrees at the height assumed, which would
cause the air in the cloud 10 be. at tho,
height, about IS degrees warmer than the
ar on the outside of the cloud at the Same
height. have shown from these pr;nc;nles
see Journal Of the Franklin Institute fnri
!0S6J that the barometer would fall under
he cloud thus formed, in favorable circum.
tsnces quantity as great as it is known -
all sometimes under the middle of dense
md lofty cloud, and that consequently the
'r would rush in on all sides towards the
entire OF the cloud and upwards in the mid.
ne, ana thus continue the condensation ofl
ne vaPor and the formation of cloud and the
eneratlon OF rain. ISee also Journal ofthe
rankin Institute for September and Octo.
err 1888, and January, February g. March
nd subsequent 1899.
9th. have shown also in the volumes /,
uoted above, that the air moves inwards on '
! sides towards the centre Of the space or II
mere great rain is falling, and Of course 4
,wards, after It comes in under the cloud. h
men IS so much lighter than the surround 6
6 air; at least, that it does SO in all storms 8
hich have been investigated, which now A. s.
ouns 20 sixteen, besides several tornadoes, Il
al OF which the trees were thrown with a
cir tops inwards. o
From the principles here established Inv d
pertinent, and afterwards confirmed hv b
servatlon, 1t follows, that it large body Of ii
IS made to ascend in a column. a Iarue d,
'od Will be generated, and that the cloud Of
y sustain in itself self.sustainine power. G;
'cn may move from the place over which in
vas formed, aud cause the air over which ST
passes to rise up into it, and thus form &C
re cloud and rain. until the rain may be- &C
ne general; for many storms which com pc
nee IN the West Indies, very narrow. are on
own to move from the place Of bargaining st;
eral thousand miles, widening out and m
reasing IN size, until they become many M
.dred miles wide. [See Bedfeld and i'll
ID and the reports Of Joint Committed de
| mn,