The New Orleans daily Democrat. [volume] (New Orleans, La.) 1877-1880, 1880-02-04


The value Of the reports Of the service y
la sed upon the fact that storms generally 90
not travel over three hundred miles M t"en-
ty-four hours, while the telegraph makes INC
storm be raging In the neighbGrhood Of any
Of the stations, or the various instruments
used show any atmospheric changes ~ my
Iornlity, the fact IL Photographed to the central
oflics!n regular or hspeo'al report. hepo ~.
based upon simultaneous observations a. the
other stations are forwarded to the che1 Of
flee with but litteditferenceOf time, showing
Indteations OF the barometer, npon when I'LL
calcuiatons Of the density OF the atmosphere
are based; the temperature is indicated by
the thermometer: the degree VI humidity OF
the atmosphere, ~ ascertainesd by the ny
grometer, and the force of the wind and tho
speed III its blowing. IA exhibited by the ane-
MON eter from comparison OF aH when the
probabilities of the future course Of the storm
arc determined. From tho same data tho
probability Of the weather for tho ensuing
twenty-sol1r hours Ia calculated.
The "prObnbllitles" are cast from ealcuta.
tious based upon particular data furnished
each day. but there are certain rules that are
also considered, which have BEEN dedneed
from u long md careful series OF obsetv e'sioBs
Thus, ono general principle IL, That tEe ta,l
md snow storm, and even moderate fslls 81
| rain and Snow, travel from the West teward
the East la The United States, rs already ex-
plained In u previous lecture.
In 1871, attracted by tho necessity OF
fall of the great rivers Of tho West. Gen
Myer instituted u series of experiments,
which resulted In the establishment or a ba-
sis for observation Of the stages Of water IN
the Western rivers. After eight years trial
| these calculations have been found TO ne roil-
| able, and have proved OF immense benefit ~
the rirer Navigation of the West and South.
These river observations are now made ~
| all stations on nasigahle streams, ana specias
stations Of observation are established at the
head waters and as frequent intervals along
| the course OF suck rivers where floods are
apt to be sudden OF destructive. whenever
| the facilities OF the signal service are SO Tar
extended as to permit tele9raphic warnings
to be sent In all cases to points In special dan
ger from Foods. the serious losses ~ property
| or 9lfe caused by floods can be guarded against
on any river In the United States with com
paratively LITTLE expense. The levee systems
| In no way be better guarded, and made IN
| turn safeguards to the Immense agricultural
interests they are intended to protect
| than by systems Of river report. whlch
/ will warn of danger In tine. and summon. u
need be- tho strength of the State 70 watch
and strengthen thcss State constructions.
| In addition t. tho Immediate and more
especially practical work OF the service, both
Mt headquarters and at the outlying stations.
II brief sketch OF which have attempted 70
| give. there Is u certain amount OF time de-
voted to the determination of certain meteor
illogical aud climatic problems, tending TO
the OF ts sel1d ,n the +, nrsnara
oRy nus 40 'cit.np,,eu,eu 80 ,, J caro-
tion OF charts ana utonlatlons. es.ns T Wv,
chars "na tables at a .s published daily weekly
aud monthly. thus permitting meteorolo9l5ts
n II. n, w servs :" and and assist to the best
OF their ability, In calculating those problems
IN netaoIoloRy "h'ch "'e NOV 20. i0es'''''i
as settled. 49,, .,oa.,.>.,ar ,,,op ~ will
i FROM the nrle, usscitpI , = ,so ant ~ INC
readily be seen more ans int allied with
the Individual Interests OF .ne people ."u ts
Sgnal b',sau' i' ,ao ny .fnnann tha ar,
faction. From me very DeRnlimf ,n p1 hr,
portion OF VeIilch1loh VI ..''', hnn .on,
means o. SUBSEQUENT nh ~ a.1 nrnha
stantly been on tne lnc.eis. ,.m T zoo rar
bilt1es arc every ytnf app1p ~. a. o,
TO certainty mus, 10 ISL .,ia INC norcant.
tho estaollsnnaht o I!le s'l vun WV oa 20 ,,a,
age o. verl1lcatlohs IoI lhs w. VIZ ~ ps
cent; IN 1878 the percentage W vs ,h ~
was % 4-lo psL osne. 80 70, w., 10 rraic
s'oas , mase =, oao hnndred ard IN 1879 dnrIn,