New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1860-11-07

BsJonstr," ia AppIstons New American Cyelo
pedis.
The Aneroid barometer wa deem by fsr the beat
inFJumeut for the farmers use, on account II i.s
che'pnsss, portability, accuracy, and Istle Liability 70
ff@otufo' II bas msreury or other R1id sbouih,
and hence is name, which sigO6ss without fuia."
IL has been described by Prof u. Siliman IT, in one
Of HE Yale College lectures consisting merely of
" fat and circular metallic box the cover of which
re very tam snd corrugated or in ridges and fdrroes
oODoenirc with the wallis The AIR is exhausted from
t8ls box, which u tben bermetcally sealed The re-
suit s that the elastic rises aud falIa 9th every
change in atmospheric pressure. BY means Of a com.
biDaIcn OF e's5s ana springs thess movements are
comuUDieattd from the csner Of tho cover 20 ooiner
which moves over the graduated facs Of a cara IN
which inches snd hundrsdhs are ins,ribed The
whole spparaus a incssed in brsss box, sbon. fo1r
nches 10 diameter and two inches deep covered ,I,
front gsss and resembling In general appearance a
chronomeier csse
"These instruments are now made by Mr. T.. Kendall
Of New Lebanon Spa, N. T., we'd known everywhere
for HE msrcuhai thermometer His instrumeEis con-
pare we'll With the French, and with the meFcaisl
barometer ard sell for the moderate price often i0ls
or one third The cost Of Smithsonian barometer.
Although for purposes OF scientific accuracy nothing
can rep see the old form Of mercursl barometer Prof
Slimsn old besifae 20 recommend the aneroid as
lie beet baromet Tor the Of the farmer Numerous
testimonial from farmers who had used them showed
heir utility IN enabling the farmer ~ cfoose The TINS
y,
"Ibat tho Oftce barometer might be b.l.er unier
stood, he enumerated the following general rules
which embody the results of long and various ex.
perier &c IN different places:
81. When the mercury Is very low, hgn wnfg ana
forms are likely 70 prevail.
80 Generally the rising Of the mercnry niica'es The
opproaoh Of fair weather; the falling OF II shows no
approach Of foul weather.
g In snltrv weather the falling Of the msreuyy To-
dcaies coming thunder. In Winter, the Ts0 q msg-
curry indicates frost In frosty weather, lie fall nd
Gates thsw, ard it, Iise indicates snow.
81 Whatever chsnge Of weather suddenly iol'ows
change in the barometer, may BE- expected - lass Da
y short tine.
IS When the barometer slters slowly long snc.
cession Of foul we,ther will succeed # The column
falls or Of fair weather II the column risfs.
Cd A huctnstug and unsettled state IN the mer;1-
rial column indicates changeshle weather.
In these rules, the index Of the anerod may
take the place Of the mercury column.
Prot Sillman called 20 witness the experience 81
Mr. joe Lesley IT,, Of Philadelphia one u the esss,
who had a typographical engineer, made great nse
OF the sneroid as "A leveiDg instrument Thus gentle
man stated that he had used this instrument during te
whole season in determining contour lines over hind
re0s of miles OF broken country, and had fOnDd on
calculating bis lines Al the end Of the ssasOn tbs dieT
ences quite inS0nsIderabe. lie wss disposed - rank
the arenoid instrument for scientific uses, higher
than Prof Sllliman had placed IT, but stated Il was
important 10 apply always correction for temperature
"a sort Of personal equation varying for each IN
stTument.
TIE above extracts are from Olcotts Oniitas' Of
The Yale AgrycalturGl L,c,Ues, and show the high
estimation in which the Kendall Ansroid baromete YER is
held by scientific men, short time after hearing this
lecture Of Professor Sillimans purchased one Of
the Anerods and have tested Is with standard
cursl barometer. In the courss Of half years ez-
rerence We have found the vsrations from she stand
ard almost nothing and in locking record We
do not end single instance in which lhe approach
II al. og
net predicted by orr faithful little instrument.
TIE value Of such wa.ch dog cf the weather, A.
IL has not inapty been termed must he apparent b.
farmers who fequenty have much grain and grass ia
jeopardy during nsrves and We feel confident tina, Il
only requires that attention should he called ~ rs
merits % insure Us general use
In taking the Aneroid Barometer - his weather
guide the farmer must recoect that there j. fixed
point at which The travelling pointer would invariably
indicate fair weather foul In every different
tion Of country the svssse atmospheric pressure will
cauie the ba the dial stand q certain place
and the vsstiors made by change Of weather viii be-
forward backward from that place a )mmon ceh-
ter. Thus, If at New-York here, close down 10 the
level ;he hand Usually points 80 the dial plate
lmesDing 20 inches Of the mercural barometer and
this same instrument ia taken IN a mans trunk 10 ia,
White Mountains the praifies Of Illinois the hand
might point TO - 5-l0hs inches - inches IN
der exactly the c)ndtonl-shRt is, the average
atmospheric pressure. The man at New.YOrk, there
fore, would regard 80 as bic point Of fair se,lsi
weather, and tie man At the White Mountains. or
Centrslis % 5.l0;hs, g, a. his. There are two
baDds the dial plate of the Areroid-one Of brass
and of steel The steel hand il connected with the
levers ard springs inside and to aud fro % mark
the charges Of weather the brass one il merely at
acbed 20 the face and ia intended for the convenience
Of the owner, who may wish to place il directly over
the steel hand at night, and see in the morpiog how
much it has changed, and whether storm or fair
weather may be expected.