1000000030

D U R

DUNWICH, r. borough of Sulfolk, forty miles eall of

Bury.

ftnds two melUbers 10 parli.ment.

DUO, in mufie,

fong or eompofilion tObe

perform~d

in tIVOpwsonly, one fung, the other played OAanin–

Ilrument, or by tIVO voiees.

Duo is alfo when tIVOvoiees fing dilTerent pam, as ae–

eompanied wilh a third, which is a thorough bafeo

isfeldomthat unifons and otlaves are ufed in duos,

ex–

eept at the beginning and end.

DUODECIMA, in mufie, il the twelflh or the fifth

doubled. See FlrT H.

DUODENU

'1,

' in anatomy. Sce Vol.

P.2 í9.

DUPLE, among mathematieians, denotes the ratio of 2

to l. Thus the ratio of 8 10 4 is duple, or as

Suh·DUPLE RATIO is jull the rel'erfe of theformer, or

as 1 t02 . Sueh is 4t08, or6 to 12.

DUPLICATE, among I.wyers, denotes a eopy of any

deed, wriling, or aeeount.

is alfo ufed for the fe–

eond letters patent, graOled by the lord ehaneellor in

eafeIVhminhe had before dooethe fame. Alfo a feeood

lener writteo aod fent to the fame party and purpofe as

a former, forfear of the fir{Ps mifearryiog, is ealled a

duplieatc:

DUPLICATE PROPORTIO N, or RATIO. See ALCEBRA

aod ARITHMETIC.

DUPLICATION, io geoeral, fignifies Ihe doubliog of

.oy thiog, or multiplying of it by 2: alfo the foldiog

of any thing baek agaio on itfelr.

DUPLICATURE, al110ng . natomills, a lerm .ufed 10

deoote Ihe folds of any membrane, or veITel: Ihus IVe

f.y, Ihe duplieatures o( Ihe iotellioes, perilooreum,

&c.

DUPONDUS, in anliquity, the weighl of twO pouods:

alfoa piece of money equal to IwO afes in value.

DURA MATE R, in anatomy. See Vol.

p. 284'

DURANCE, • river of Fraoce, which f.lls iota Ihe

Rhone, a little belolV Avignon.

DURANTA, io bO/aoy, agenus of Ihe

didyn.mi

. an–

giofpermia clafs. The calix is above Ihe fruil, and

divided iOlo five (egments; and Ihe berry coolaios fou r

feeds. There are tIVO (pecies, both na!ives

Ame–

rica.

DURATION, ao idea whieh we get by aueodiog lOthe

fleeliog aod perpetually periflliog p'" of fueeellion

Ihe idea of lueeellion being aequired by r"fletling on

tha! traio of ideas whieh

eonfl~ndy

follow one anolher

in Our minds, as loog as we are aw"ke. The fimple

modes of duration are any d,lTerent lenglhs of il where–

of we have dillintl idtas, as hours, days, yeJrs, time,

eternity,

&c.

Dl'RAT rON, as marked by cenain periods amd m!a·

(ures, is whal we moll properly

caJl

lil~<.

See

T rM E.

DUV,ATION _/

.mM,

aecording

Arir:odc, is

cnnfi·

oed 10 a naluralday in tr.,:cJy;

11tH

ti"

cr~,,",I,

:CCOIJ·

rng tlt ,he (arne critic, h.s no fixe,lli'I1C.

IU~SSE,

in lalV, is wlr :rc a

rli'lI

i, I';r0ngr,,:!y

¡mpl

irOnl'll,

or ren! ..

in;,..d

(Ir

his

hh~·tt

<,:111111.11

lt\

I¡w

or is Ilr rCJleotd

I,,'k l. ·.I(¡uolul,

459

D U U

or beaten, till he cxccutes a bood, or olher w;'i–

tin~.

DUIUltlM, a eity and cOllnly, io the nonh of England,

fituoled

Ihe river \Vere, foomen miles COOlh of

Newc.llle :

\V.

Ion. 10 12', anci

N.la

0 íO'. [t

is the (ee of a bilhop, and C<nds two memb:rs to par.

liament.

DUSSELDORP,

city of Cermaoy, fitualed on the

eaflern Ihore of the Rhine, twenty miles north of Ca–

logn: E. lon. 6° 20', aod N. la!.

p O

Ií',

DUTCHY, io geography, an appella/ion gil'eo to the

dominioos

a duke.

DUTe

y .

eo uRT,aeoun of lhedutehy chamber ofLan.

eafler, hdd at Weflminfler, before the ehaoeellor of

the fame, foc mallers eoneerning the lands aod frao–

chi(es of tha! dlllChy.

DUTY, in general, denotes aoy thiog that ooe is ohli–

gtd lO perform.

DuTY, in polity anJ eommeree, fign ifies the impofl laid

on merehandizes, at importatioo or exportatioo, eom–

monly eallcd the dutics of cllfloms; alCo the taxes of

excife, flamp·dulies,

&c.

See CUHOMS,

EXCI

SE,

tic.

The principies on whiehall dUliesand eullomsfllOUld

be laid on foreigo merehandizes, whieh are imponed

iOlo theCe kingdoms, are fueh as tend 10 cement amil–

tual friend lhip and trallic bCllveeo one nation and aoo.

ther

and therefore due care Ihould be takcn in the

laying of them, tha! they may aoflVer fo good an end,

and be reciprocal in bOlh eountries: they Ihould be (o

laid as

make lheexpons of lhisnalioo at lean eqllal

lO our imporlS from thoCe nalÍons whcrewilh IVe /r,de,

fo thal ab. lance in money 010uld not be iITueJ OUt of

Creal Britain, to pay for the goods and merchandize!

of olher countries: lOIhe eod Ihdl no greater number

of our landholders and manufatlurers Ihould be depri–

ved of Iheir revenues "iGng from the produél of Ihe

laods, and the labour of Ihe people, by foreign impor–

/a,ions, Ihan are maintained by exportalions 10 Cuch

couolrits. TheCe are Ihe nalional principies on whieh

all our

treati~s

of coO/mnce \Vith olher couotries are

be grouoded.

DUTY, in the milimy

art,

is theexere;(, of Ihofefuoc–

lions thal beloog

a (oldier

wilÍl Ihis dillintlion,

that mnunling guard; and Ihe like, wh" e Ihere is no

enemy direélly to be (ngaged, is c.t1letl rJ",y; bUI,heir

marching

mect and fighl an eoemy is calleJ going 00

(crvice.

DUUi'rIVIRATE, Ihe off"e or dignity of Ihe dlll"1II'i–

ri . See ,he neXl anicle.

The duuO/virate

1.IIod

lilllh, year nf Rome

399,

\\'he"

w:\s ch:w:!ed ¡nto a dccem\'irate.

DUUM"IIU, in Roman amigurly, a general appel–

lal;on r,i,'en lO magillralCs, con"n:/Jionw, and nir,–

I.:t!rs, whac

\\10 Wfl

join d

tOEeth~1'

in thl.!

f.inh!

func~¡nns.

l\I

V I RI

t'.\r

IT AL

es wcre rhe

jllJgC!

in crimio:" c,tn.

lIS:

fr om,heir f,:nlCncc'

I\'"S

I"wful t....ppal 'o

,h~

1" "1'1t.

\1'1,,>

onl)' Irad

",e

pow"

,,1'

conrkOlllinga ei,i.

IUI

d",Hh,

'fhd",

JlII~~, S

\\ "I l'

:Jl.t'n

fl'llrn t!il'

b~I\ly