davidaulloa/AmericanStories huggingface dataset:
Alexandria advertiser and commercial intelligencer. [volume] (Alexandria [Va.]) 1800-1803, 1802-09-10
SAMUEL BISHOP,
goouRLlER, 81 STATIoNER.

BoowELLER, & STATIoNER
.sRsJ5egfally informs he Pablo tbaf he has
rseeivea from Lee 8 Cas- Pafeut aua
Famiy Medisias Stare, Baltimore, a
tye@ ag5rtmeut oft6e 1olloqrmg
Valuable Medicines,
:vV.bieb are il bisb sasem and general NE
throughout The U.ifta Sfates, maay e
sbsm 5eiag JJold cheaper nan f5e dr4gi
efzv5eb they arr compounded, could be
pAeb4ted at a retail Store.
e. TAKE NoT1cE,
Il BAT S. B56ep naapoiated tbs ONLY r.
ger far dzexauayia.
DR.. f5AMH.TcNss ELIXIR,
Afovercign remedy for Colds, ob,snate Cous rs,
Althaas, Caearrhs, Sore Ihroats, aiad Ap.
preaching contunpnels
Ia parents av5o my PAGE r5ildreu affixed
evifb tie HoJPiNG COUCH.
This difcovery is af thehrit magnitude, as it
is an immediate relief, ehccas the progrels, and
II ihoes time entirely removes the n,oit cruel
.diiorder TO which childre are liable--the Elixir
is f, perfectly agrtc.bl. and the doie 10 tlaal,
that no difficulty aries III takingir.
Alexandria advertiser and commercial intelligencer. [volume] (Alexandria [Va.]) 1800-1803, 1802-09-10
TApE WoPM.

MIR. SAMUEL FULLER, Inn.keeper, on
the Hartford road, ten miles from Baltimore,
began about 10 months agoto be grievouily al
Acted with tape worm, which increaied TAFT
in Gze and Rrcngth, 70 as to excite the mott
horrd lenfasions by its writing motions and
inrolerabie pains, reiembling the craving and
,eariag of his bowels, which deprived him Of
his ncc,Gary leep, and caulcd fn,h dreadful ap
prchcnfons as cannot be conceived but by one in
a Il Liar fituation-~his appetite watrd rapidly,
and with that his Rrength, 70 thar he was una
bic to attend to any bufneis--when he heard
of lome excellent cures performed by Hamil
tins worm lozenges, he took a,large dofe, which
brous hit away about FOUR YARDS of the
worn, (now in the pofleiFvn Of Lee & Coz
but renewal Of his pains looa convinced him
tina. this montrous reptile had recovered its firh
vigour--Applics1io was made to ee & CO.
for more of their medicine, with -ir advice
from which reialted the to,als expullion of his
formidable enemy, IN leveral pieces, which he
fuppofed to be SIX or EIGHE@ YARDS more.
A few months have iince elapfed and Mr.. Full
Ter is now in peri Ct health. The above facts
are well known to numerous Gil lie OF his nei t.
bours, and hinief VIII crafty any who may
Win TO MAKE iul tCt ibIiutilSS oil NJ luUCIt.
Although Ham.ton's wurn. lczcnges produce
iuch powerful effects, when necehaly, yer they
are perfect innocent and u,i.d in their opera
rion on the hannah body, even taken in large
dofes, as Mr., Fuilcr will teil:y-their particu-
lar mildnefs is ahu!1daptiy evident Ia inuun,era.
bic cures of infants.
Communicated BY Dr.. J4,sa S30nglsr,
York-be0n, PenxGfvagia.
Letter from the reverend Mr. JOHN MOL
Their, nliniiter CT the Mo1avian church, in
Yorktown.
,2o,A, Jnzady .4tA, asoz.
Dear Sir.
D.. Hamiltop's lozenges have been recon-
4ncnded to me as a very adequate means for the
cure Of children aft eted win worms, procur-
ed box for the uie OF my family, TO Try, whe-
her by means of this nelcine, might be era
bled co gain point, which, II accomplish, diff:
iercat other means had proved abor;ive. My
eldeH boy h,da very hck!y appearance, was very
reRlef5 at night, grew leaaer from time TO time
in fhart, he leened to be in pr, caricus fate Of
health, which would yieidto none ot;he ,n,edi
cincs administered, until gave him two doie.
pflpzengcs, agreeably to the dh cGlicns, which
carried off a luDhance TO al appearance mere
nucus, but u,on cicie illfpecfion quite replet
nth very fma.l ivi.g animals. MOI cue Of HI
Alexandria advertiser and commercial intelligencer. [volume] (Alexandria [Va.]) 1800-1803, 1802-09-10

INDIAN VEGETABLE SPECIrl
A fate and fpecdy remedy for the venerial diff
cafe.
"An ounce o. prevention is worth pound OF
cure
For the prevention and cure of bilious and ma
iIgnallt levers,
Alexandria advertiser and commercial intelligencer. [volume] (Alexandria [Va.]) 1800-1803, 1802-09-10
is REC MMENDHD

DR.. HAFiNss ANII-BILLIOUS-P PILLS
The operatiqs Of thefe pills ispeIfecfly mid, 70
as to be uled with latety by pcrfons in every iitu.
ton, and OF every age.
They are cxce,lently adaptedto carryof luper-
fuous bile, and prevent its morbid iecretiens--to
srellore and amend the appetite-so procure II ee
pei lpiration, and thereby prevent COLDS, which
are often attended with fatal coLieqnences-a
dofe never fails to remove a cold, il taken on its
frA appearance. They are celebrated for re-
moving hayitual Observation-Disclosures at the to-
mach. and feyere head ache-and ought to be
taken by all perlon, OH change OF climate
Alexandria advertiser and commercial intelligencer. [volume] (Alexandria [Va.]) 1800-1803, 1802-09-10
HAMILTON's ESSENCE and EX-
TR ACT Of MUSTARD,

A fafc and saecsual remedy for govt, theuma-
tim, palfey, iprains, bruiies, pans in the face
and neck, &c. Ana has performed more cures
in the above complaints than all the other medl-
.icines ever before made public.
Fran Dir. Weatberduru,
.Wytb eoa1y, Virginia.
Alexandria advertiser and commercial intelligencer. [volume] (Alexandria [Va.]) 1800-1803, 1802-09-10
10 be Rented,

4 q UC NCTELCLt,
The Hou(e in which | nov
live. of which have leate for upwards
of three years from this time; the i ,!.
ton i.sI;gible and tie Houfc commodi0u'
Fer terms apply TO ,o,,c
Fairfax. Greet, Iune 70. r
Alexandria advertiser and commercial intelligencer. [volume] (Alexandria [Va.]) 1800-1803, 1802-09-10


TRACT OF LAND.
Lying on both lides of Goole Creek, n
this County, and running from thence to
the laid town; containing a5uu, five
thoaland acres, mott of which has been
laid off in lots, and fnce leaied for live
or term of years; from the peculiarly
eligible fituation of this land, ard i,
great 6tnefs for the improving fate Of
agriculture that is taking place in tbi,
ne gh@o. hood, it is hoped that it will BE-
an object wot,a tie attention of th,G.
who with TO vef their money in landed
property; one third of The purchale money
will be required on the day of Lle, the
remaining two thirds TO be paid by two
annual inaallments; fix per cents of tn.
Stock of the u. States viii be taken in
payment for one half Of the two DELAYED
iniallmenss, at lis current value, in Il i
principal commercial towns, CT bond,
with good perfonal fecurity and mortage.
VIII be required to fecure the payments,
Mr.. Joha Matthias, living in Lsefburg,
and lurveyor Of this County, has pls,
of the land and will fufyey or lhow any
part of it to thote WHO with il, they pay.
ing bis exPences for 70 doing.
LANDON CARTER, Junr.
THOMAS L. LEE.
Loudoun County, Augua 20. go
SUBoCRlP IlUNo FOR
The Turnpike Road from A!eran-
drsa to Little Riucy,
in Loudour county, viii be received by
William Hartllorqe for hiEttt ard |oan
Thomas Ricketts,, in Alexandria -lffael
Lacy and Burr Powell in Loudoun; David
Hunter and William Riddle in Berkeley !;
Thomas Hammond and Matthew Frame
in Jeferlon Bulhrod Taylor ard VIM.
Davidfon in Frederick Samuel Clowdfon
and William Stienberger in Shenandoah.
This being d buGHcfs in which the CON-
munity may be greatly benefited, and as
it has only this day come into my hands,
have undertaken to publilh without con-
falting the other commldionerS as they are
all at a di}ance. The law is with me
and doubt not viii be lhewn by TIE
other comnillioners, to any perlon ap.
plying. The law require ten doll4r tc
be paid at the time of fubicribins; the
remaining fun Of ninety dollars, on each
ihare, is to be paid in dividends, as called
for by the PRECEDENT and DNetto:s, 10 DC
chofen by the acckholders.
VIM. HARTSEORNE.
April 20. GO.
Alexandria advertiser and commercial intelligencer. [volume] (Alexandria [Va.]) 1800-1803, 1802-09-10
r E NJ O Y A L.

JOHN BYRNE has re- !
moved to the corner Of King and
ROYAL Streets, oppolite M, Mt
Motifs Commonly called Me- l
Knights tavern, where ne n1'
for fale CHOICE WINES, SPIRIT
ous:LlouoRs and GROCERIES, d
moderate prices.
September 3. -
Alexandria advertiser and commercial intelligencer. [volume] (Alexandria [Va.]) 1800-1803, 1802-09-10
THE ANODYNE ELIXIR.

For the cure Of every kind of heid.ac
Alexandria advertiser and commercial intelligencer. [volume] (Alexandria [Va.]) 1800-1803, 1802-09-10

Nv Sold likewile BY 5. Plea
4ants, Richmond Rofs and Dou-
glaG, Peteybp,g !; 7. Green, Ere
derlek/hugh; G. Pluase, Smith,
field; N. Jones, SuGo1 DR..
Miller, Wmchsfer r. Green
hov, WlHanyburg and T. Shau,
Lee1bmg.
Alexandria advertiser and commercial intelligencer. [volume] (Alexandria [Va.]) 1800-1803, 1802-09-10
Censlcalcn,

purehaled al your.fhop the preparations you
cali Hamilton S EHenee. or EElraof of Mnifard.
which lbelievcs lis perfectly removed chronic
rheumatif.n <ol thar kind namea leiatica, or Of
the hip joia5j under nhi. h had abouTei for a
long time, aid which h4l h4ftlcd every article
in the Materia Medica, and every mode OF treat
mens received into practice fotthe cure OF this
obtinate dfsale, If you think this letter uteinl
: You are at liberty to MIKE it pu5iic.
Alexandria advertiser and commercial intelligencer. [volume] (Alexandria [Va.]) 1800-1803, 1802-09-10
p. WEATliERHURN.

z-Jnhn Hoover, rope-m-kcr, S,.u'h Second
: Street, between Mary and Chri1ian- Streets,
Philadelphia, voluntarily m4ke,h oath as fol
lows, namely, thar his wife, Mary tleover, was
10 fevere,y aflicted with a violent .rheumstifn,
very dangerously isuared the conf quence of a
feyerc cold after lying in, IS 60 be colhled TO her
bed, for fevefal weeks. and was at length re-
dused to the melancholy appreciation of re.
mining s~cgipplc for HE. notwithstanding the
mod respectable medical advice was followed,
and every probable rergse ~ attempted when
feeling ieveral cafes of cures performed by Has
mis,ons Efience and ExtraG o! Muiard, they
wee procured lrom MIR. Birch, No. II, South
sssseond-Strcee The fit application enabled
III TO walk acrof, the room, ard the ufc of one
Aaa Acngth. IoaN HOOVER
Alexandria advertiser and commercial intelligencer. [volume] (Alexandria [Va.]) 1800-1803, 1802-09-10

The fubfcribers authorized bv
the viii Of the late George Carter, .,
Stafford County, will fell a, Public Au,, i
on the hff Monday Of December next. !.
the town Of Leeibarg, his "
TRACT OF LAND
Jenks' Portland gazette. Maine advertiser. [volume] (Portland, Me.) 1802-1803, 1802-10-18

A private letter from Paris of
the date of Augult 70, itates as
follows -" The fete which was
celebrated yeiterday, TO CONNIE
morate the birth day of the Firlt
Conlul, was the mott magnih-
cent that has been feen iince the
revolution. A fplendid decora-
ton was difplayed in the Place
Vendome. There were Io2 CO.
lumns, representing as many de-
partm ents; in the centre was an
olive-trce, mott iplendidly illu-
minated. In the Place de la
Grcve was a dilcharge of 10000
fuiees, provided at the expenle
Of The city Of Paris ; they were
discharged from the foot of the
Pont Neuf, and refembled in
their effect an actual poicaHo.--
There was another illumination
in the Champs Elyfes. The
Hotel de Vile was Illuminated
more fuperbly OH this location
than it has been for the laIt ten
wears. A itar of 40 feet was di[.
played from the top Of Notrc
Dame. This appearing to the
ealtward of the Thnilleries, was
applied TO the arrival Of Bona
parte from Egypt" Un a,ar1
,i7us ca vsna de Poricnf' "A Far
has come 10 rs from TIE eat was
the motto of the evening. This
annual fetc Of the Firlt Contul,
il now appears, is the only one
which will in future be celebra-
ted in France. This is the hrll
Jenks' Portland gazette. Maine advertiser. [volume] (Portland, Me.) 1802-1803, 1802-10-18
WNesnanp.

Mr., PssSISs inventive genius teasaa
rasa er,di, Ga the American eharAaer -
There arc few improvements Of late that pro-
mic 70 much utility tC the community !,
h-rc, and to mariners sfpeeiaIiy. as his new
Ansenua IMPROVED PUMP, which We
max merits univsrfN a,,sn,ioa.--rhe follow.
Il, ogrniui theory OF this pump has lately
hr-n pubhihed y the iouthward and we feel
confident il viz be gratifying o tAe readers
al TIC Gazette.
Jenks' Portland gazette. Maine advertiser. [volume] (Portland, Me.) 1802-1803, 1802-10-18

fete il France which has a man
for It's object. Formerly thcfc
rcjoicings were devoted to yitto-
ry or peace. Thete abltratt
things have now no longer the
fame influence. The crowd at
the levcc was immcnfc.
lL.A@a Pssvl !
In the treafury Of one Of the
Kings ofPerfia was. found vafe,
with the following lines, iniaid
in letters of gold. One cannot
bur fn;le ar the turn, in which
IS an equal proportion Of Phylof-
ophy and humour :---'' He who
has no wealth has no credit s.
he who has not an ohedicnt wife
has no rcpofe he who has no
offspring has no strength ;--he
who has no kindred has no flip
porters; and he who has none
ofthcle, iv.S free from care.
Jenks' Portland gazette. Maine advertiser. [volume] (Portland, Me.) 1802-1803, 1802-10-18
agrIsaItnraI.

SOME late calculations made
by Arthur Young. may be worth
The attention Of orr farmers.
He allsrts, that twelve millions
fave hundred thoa.and acres or
land (tantamounr t0 one third
part OF England is laid cut for
the fubGItence Of horieS cxclu-
FIVE Of a comfortable annual i'm
Portafion floats. He adds. that
an OK. with proper management,
will gain from three 10 FIVE or fix
pounds per annum in his growth,
requires no oats little care or ar
tendance, and is generally con-
tented with itraw, whit the
horle grows annually worfe--
that farming horle continues
on al average 4 ton Of hay IN
winter, and anotherin the fpring
and fummer, beEdes bulhel 81
oats per week for fix months in
the year, and two ditto per week
for the other fix.
Library .ffysrfsrr.
Jenks' Portland gazette. Maine advertiser. [volume] (Portland, Me.) 1802-1803, 1802-10-18

i he public are requeiled to
examine critically the iaveral
merits of this invention they
will find that in common wells
which are deep, and where
pumps work with difficulty, the
new plan may be adopted with
advantage. DiitillerS will find
that much labor may be faved
in rafting thofe immenle quaint
ties of water, for which they
have conltant ule. In cities, the
ravages of fire may be much
iooner arrcited by having th-fe
pumps TO fupply engines and
by uiing them in ihipS, il has al
ready been experienced that the
merchant gains fecurity to his
property, the feveret duty of
the mariner is one half dinin-
iihed, and his life lels expofed.
From charleIicn Paper, Sept. IS
When making a trial Of MIR.
Perkins double-itroke pump, |
found It filled Gxty gallon cafk
(belng worked by two Perfons)
in 70 feconds.
The fingle-aroke pump,work-
cd by the fame perlons, filed the
fame caik in 81 feconds.
! then tried fix ofour common
Pumps-one was neqo and in good
order, and with the fame perions,
filled the fame calll in 81 fcconds.
The ed pump filled the fame
cafk in 90 feconds--3d, in 70
9Th, in 75-Sth, in Ico-6th,
IN liz.
None OF the common pumps
were In as good order as the new
common pump, which, with the
lame power, required double the
time 70 ill the caik that the fin
gle-itroke pump did and nearly
three times as much time as the
double-itroke pump.
A iaving of labour therefore
among few leamen, itruggling
with the common pump to fave
their lives in leaky vehiel at fea,
is, with the fngle-ltroke pump,
as two 70 one /; and with the
double-ltroke pump as three to
one in their favor lit is there
fore with real fatisGa6tion, that |
recommend TO our merchants
and matters of veaels, Perkins
improved competition e Patent
Chambers" ]. SIMoNpS, Col.
Jenks' Portland gazette. Maine advertiser. [volume] (Portland, Me.) 1802-1803, 1802-10-18

Weighr o. the atmosphere be taxi
Gil oil within two pumps with
equal piitons, the water will az
cend until the column be q feet
high, IN that which has a cylin-
drical tube, nearly as ioon as a
bullet could drop through the
fame ipace /; whereas in a pump
of the mott perfect contribution,
on the old plan, il cannot af.
cend in the fame time but few
feet. The preaure of the al
cending fluid againit the relpcc-
tive piitons, will be nearly as
the difference OF its velocity
This important circumstance is
the BATS OF the Improvements
Again the lois will increale in a
certain proportion TO the veloci-
| ty of the pilton, the hze of the
tube below being Determined !;
this latter however is nos per
ceptible, where the velocity of
the pilton is even much greater
than in the common pump, if
the pafage for the water be nor
contracted.
From the principles now itat-
ed, it follows that in pumps,
which have paiiage for fupply-
ing the water, Of only one fourth
the diameter of the piiton, there
is lois of prellure againf the
bottom Of the pilton, the infant
it is put in motion, however flow
that motion NAV be and Ii is
found by experiment, that if a
piiton be made to PATS through
a ipace of eight inches in half
lecond, when the tube below is
bur one half the diameter of the
pilton, half the power thus APP
Piled will affect the fame, if you
remove all obltacle or rehitancc
10 the water below.
Mr.. Perkins obferving this,
concluded that as one bzg the
power necehary to raile the pif-
ton through fpace Of eight in
ches, when the fuPplying tube
was but Que fourth the area of
the piiton, would raile it nearly
through the fame lpace when all
ohitacles to the afcent Of the
water were removed, he might
by uling the whole power, pro-
duce a itroke about twice as long
as before. He ordered his pumps
ID be bored below as large as the
pilton, and enlarged the bottom
of his chambers juit below where
The piiton played, 70 that the
lower valve which relted on a
rim within the bottom OF the
chamber covered an aperture of
the area OF the piiton. Thus
the cylinder where the pilton
moved, the pafage by the lower
valve, and the iupplying tube,
were of the fame area, and the
column roie without contraction
or obitruction. 70 effect lon
| ger ftroke, he removed the full
crom, or bolt, farther from the
pilton rod, and thus applied the
power faved by the Improvement
in the tube. But if the pilton
were TO be forced through this
ipace feveral times in equally
thick fuccelllon, that is, in about
a lccond, and the fupplyiug tube
to be on the common conltruc-
ton, there would be no more water
discharged than when the itroke
was but half the length ; for the
water could only rife taft enough
TO occupy half the fpace left by
| the pifton. "A vacuum is made,
and of courle an unneceaary ex-
ertion ofpower takes place, which
Wy. - - ...,-,.-,,- l., t,r|, - /,
Jenks' Portland gazette. Maine advertiser. [volume] (Portland, Me.) 1802-1803, 1802-10-18

with the pi.ton (Which is rarely
the cafe in pumps of twelve or
hxtecnteet, and when the ltrokes
are made in quick fucceiiion)
IT'LL there is nothing gained by
momentum upwards and gen.
orally ten ltrokes with one of
thoie pumps, will not difcharge
a quantity of water equal to ten
times the fpace the piiton panes
through each froke; but on Mr..
Perkins plan, it will be found
that the water, flowing without
contraction or oblfruttion, ac-
quires iuch momentum as to rife
confiderably when the piiton
ceaies to afcend and the more
is gained by momentum, the
more rapid the fucceflion of
itrokes. 1t has been proved TO
have gained one fifth by this mo-
mentum in Jingle Itroke pump.
On the old plan, the quicker
the iucceilion of itrokes, the
more is loft each time the pilton
rites.
Another improvement in this
pump is the conscil, or trumpet
bore, ar the bottom. 1t has been
Gated by writers on hydraulics,
and pcoved by experiment, that
a fluid does not enter cylindri-
cal tube in parallel lines, but
each particle has a tendency to-
wards the centre Of the cylinder,
which will very conGderably
contract the ltream, and make
what is called an eddy around
the orihce in the inGde. Mr..
Adams, in his treati(e on hydrau-
lies, oblerveS-" Contraction in
the itream takes place, when
water pafles through a cylindri-
cal tube, at its entrance this
contraction drniniihes fcnhbly
the Quantity of water thar ihould
be furniihed by the tube, calcu-
lating on its area" Thus in the
pump where the tube is cylin-
drical TO the lower end, the
ltream will be found coniidcra-
bly, contracted +; hence another
obltru6tion TO the rife of the
water. Mr.. Perkins caufeS eau
ieS the lower aperture to be bor-
cd conicaliy, and this conform
ing TO the natural motion of the
fluid, neither eddy nor contrac-
ton in the ltream takes place.
Another very great advantage
reiulting from the plan of enlar-
ging the lupplying tube and ap-
erture at bottom, is, that this
pump will not be liable to choak-
ing by ballaIt, grain, &c. The
water enters 70 flowly that bo-
dies, except iuch as are about
as light as water, will remain
undiiturbed at the bottom fuch
as rife, have a free & flow pahage.
In common pumps, the valve
on the lower box is frequently
out OF repair it then becomes
neceiiary TO draw the box, which
is often effected with great diff
Guilty and interruption, owing
70 the fwelling of the wood. 1t
is no uncommon misfortune al
fca TO draw the itaple, and leave
the box fixed in the pump this
accident in 4 leaky fhip, mult
endanger if not caule the lofs OF
the veiiel. That the improved
| pump is liable TO none OF thefS
interruptions, will be obvious on
examining the iimple conltru6t.
lion Of the chamber and lower
Ivalvc the entire chamber j.
drawn with cafe, and the valve
|reolaced in few ieconds.
| ~ iL.l.. NJ ID
Jenks' Portland gazette. Maine advertiser. [volume] (Portland, Me.) 1802-1803, 1802-10-18
TIE THEORY OF PERKINS ~

- PRoFED PUMP EXPLAINED.
I'll THE atmosphere is fluid
y body, Of which a column Of any
! given dimeaGons, preies on
the common farface Of the earth
or water, with weight equal to
column of water of the fame
Y, y erea, about g. feet high. The
! prelIare of fluids being every
way equal, if a Cylindrical tube
"a b. emeiied in a given fluid,
thar fluid will alcend in the tube
N IS high as ITS furface without /;
!. Bit il the fluid thus preaed up
.MMnds, be more denie than the
~ furyouniing fluid, it will only
1lle untill the column within the
an tube be equal in weight 70 a COL
sas umn of the surrounding fluid,
IAse ol the fame erea. Water being
XII more denie than air, will only
! n riie thirty-two feet by the pref
hlinrc Of the atmosphere.
NH MI Lex the lower end of a cylin.
o. drioal tube, fuppofed to be thir-
~ ~ y-two feet long, be immerled
liza n water. Let piiton, movea-
e in that tube, be deprelled TO
' a.. Ne furfacc Of the water there
hlhFill then be a weight Prefiing
y, sp ~ pon the piiton, equal 70 a CO.
~ hma of water Of the fame area,
u ! feet high and an equal pref
i hfe againlt the bottom upwards;
4 \ will therefore require a very
Il ~ b. power to make the piaon
unss, Gin TO rife. Raile the pilton
XIV ID feet there is itill preliure
)VT, above il equal to 8 feet of
water; but the prsaura upwards
VI ,sgainit the bottom of the pilton
\ now reduced one half; for
Iasp the column Of wa er, below the
piiten, which is 10 feet, is fun
ported by the weight Of the ex-
s,"esnal atmosphere, and therefore
.nS fpunterafS one half Of its pref
/ hre. Raifc the piaon 10 81
w., Bet, it has itill, on the top, a
! bl. reight equal 10 that OF a column
ss IEI n water 8, feet high and ther1
now no prehure againf the
olDbcttom of the pilton. If the pil-
!, Is pn be RATED any higher, it mutt
I,pA by power fufiicient 10 raiie a
,s.p plumn of water s. feet high, OF
y equal area, s the fpace ii rifles
. ove3 feet, willbeleft avacuum.
Is Rence it is evident, that if al any
~. y G.ance from the furface Of the
:. y, - Hater, lelS than g. feet, the pil-
gnS ton be moved upwards, and any
w. v pbllru6tion below, prevent The
J sbs eater from acting againlt the
- hottom Of the piilon, as above
n 4 ~ eicyibed, there will be a lois Of
5rs Dover.
/ ~ y The principle that the predure
esJI' fluids, up or down, is as the
~ Tea of the furface ON which
hey prefs, let the column thro
fhich the fluid paiies be ever fc
"a ouch fmalier than the area, vii
.<sss Pply to the preAure OF water
v X pwards againit the bottom o
- = nc piiton, only when that plltor
I az rsf. The infant you move
W. ae pilton upwards, you loie
Z 2 ~ aft OF the preilurc, and this lol'
IL. lii be greater, as the tube be-
Nv IS made fmaller than the area
~ the phton, the velocity of rhe
iton being determined. Tc
y convinced that there is thi'