New-York daily tribune., 1849-02-22
NEW-YORK TRIBUNE.
C..m,.,ry In its Relation to Agriculture.

oa AxrIsELLs NINTH LgcTvRE
.,.rss before Aeran Agr1'usi As'oe'oo feefeA g.
The Ninth Lecture, on Tuesday evening, was
dsvoted mainly 10 the confederation OF the seiion Of
lime mon the soil with other Mineral Msnures.
The Lecturer noticed preliminary TO the regular topics
of ,hs evening the effects Of few manures OF animal
origin which bad been too briefly mentioned nthe pre-
viou, From the results Of different experiments
which he detailed II appears that the greatest produce
results from the OF Gusno and the least from bone
dust-wi,h the esst Of al from the ordinary farm
Mineral manurss he continued are those substances
which are used amendments TO the soil a. well as
for the purpose OF sor6pg those mineral substances
which plants require food. Al substances which
known a ninere msnures are found 10 the ground
and the mcst prevalent Of these is Lt1l<
The Doctor then went into al expaoatOD, In detail
of toe different Limestone rocks whence the main
supply OF Lime Is found 10 be obtained He observed
that we may get the lime perfectly pure from good
Limestones by simply burning t5em-cODssilng OF car
bonic acid, fixed air and lime the two former ingre-
dents are driven off by the hes, and zoe Lime
pure. Ii is then In the state termed Quickime-hefe
the speaker illustrated the process OF siac2ng 'he
philosophcsy. and demonstrated the intense neat
evolved during such process oy the isnoh o O' u
Phosphorus when placed upon the mass
In the process OF burning Lime loses nearly nan its
weight from the evolution Of the substances previously
mentioned. Hence, the speaker urged the inexpeci'
ency of its removal for farm purposes before burning
az. great amount Of labor may be thereby saved.
Mari be- defined 10 be the natural state In which we
find Lime distributed pent.fuy In the ground for the
nae of the agricuust II that earth which conais
a notable qasntty OF lime In combustion with csrbonc
acid and which, exposure 10 the air falls TO powder
II II does not pulyerze the earth ceases to be atroe
MsrL
Msrls msy be .ested (said the Dr) by pouring upon
them little strong acid when the csrboRic acid will
be set free and the gas will extnguish taper mmers
ed In the vessel
The remains OF Molluscs contained Ia Shelly sand,
consist rnsiny continued the Dr) OfcsrbOuste oflime
In combination with little msguesis. Oyster sheli
he considered particularly valuable sDd will a.
substitute for Mari 10 the composthesp-On secoun,
OF the abundance Of lime IN their compOsiticn-
We find Lime he observed, in almost every crop W
raise and soil can dispense with 1.-THE small amount
at least must be supplied which the plants found
actually 10 require To insure the greatest benefit from
is use DR.. A. recommends 10 Farmers the addition d
rnal quantities at greater Intervals Lime acts not onJ
upon the ground but the atmosphere II contributes
10 the formation of Ne in the soil whence the Nitrate
formed-sets free many mineral matters 10 the
ground which the plants require and presents them IL
such proportions that they may be readily assimilseC
by the plsnt-snd the important purpose OF th
destruction Of the Of insects which may have beeI
deposited In the soil
The DIR. then passed to a consideration of Gypsnm-
which he thought most beneficial to the legumnou
plants particularly upon Clover, and next to that upo
the Turnps-The hour precudiDg farther remark, th'
remainder Of the Mineral, with the various speca
ksnures, are deferred until the next Lecture.