1000000030

G U N

Iml Ihe

~étivily

of Ihe explofioo; aod yet Ihey \ViII

be fo cOOlplelcly uoiled, as

move wilh un.orumon

motion; bUI the uodailic part wlil be lefs aeeei"atcd

thao the rdl, and lome of it will

001

eveo be e"·

ried out of the barreJ, as

~ppears

by the

eonfider~ble

'111~otity

of unéluous maner, whieh adheres

Ihe in·

fide of aJl fire·arms, after they h..ve been ul"d.

Th& inequalitics in the expanlive motion of tbe

Hame render it

iOlp,"é\i,"bl~

dete!

min~

its veluei·

Iy, other\Vife Ihao from experimeots.

r(ClI"f}" d.,nag,tI

Gl'NPOlVDH. The method of

the powder·merehaots is, tO put

p~rt

of ,he pow·

der

f~il· cloth,

whieh Ihey

,dJ

an <qual weight

of what is re"Uy gooo ; and with a filovel mingle ,t

welJ logether, dry il in ,he flln, and barrel il up, keep·

iog il iD a dry and

p' ~per

place. Othm agaio, if

be .ery

b~d,

rellore il by moiflcning il

~ith

..negar,

water, urioe,

lIT

brandy: lheo they beal il lioe, f<aree

it,

aod

e.ery pound of powder add ao oooee,

ouoee and a half, or

IWO

oonees, aeeording as it is de·

(~yed,

of melted falt·petre. Afterwards. thefe ingre·

dieets are to be moillened aod mixed \\'ell, fo thal no·

thiog eao be

difcero~d

io the eompo(ilion, whieh may

be koown by eoning me mafs; and lheo Ihey granu·

Jale it as aforefaid, lo eafe the pOII'der be in a m.n·

fler quite fpoiled, !he ooly lVay is to

eXlr.él

,he falt·

pelre with waler, aeeording

the ufual Ol,'Oner, by

boiliog, filtratiog, evaporaliog, and cryllallizing; aod

Ihen wilh frefh fulph or aod ehareoal to make it up a·oew

again , ID regard tO Ihe medieal vinues of gun.powder,

Boei-haa.e inforlm u•. that the Oame of it alfords a very

heal!hy fume io tbe heighl of the plague: becaufe the

explofive aeid vapour of nilre and fulphur correéts !h.

.tir; aod that the fame vapour, ir reeeived in a fmaJl

dofe pent up place, kills infeéts,

\¡

is enaéted by

and t ( of Geo

and

Geo,

11 ,

20.

that guo·powder be earried tO aoy place in

eovered eaTl iage ; the barreis being clofe joinled; or

in eafes and bags of leather,

&le.

Aod perfons keep–

ing more thao

200

pounds weight of guo.powder at

one time, within Ihe cities of Londoo and Weflmin·

fler, or tbe fuburbs,

&le.

are )jable to forftitures if il

be not removed; and julliees of peace may itrue war·

rants to feareh for, feize, and remove Ihe fame.

Th~

invention of gun·puwder is aferibed by Poi)'.

dore Virgil to

ehemifl, who having aeeidentally put

.fome of the ingredients in this eompofition in a mortar,

and eovered it over with a flone, it happeoed to take

ro'e, and blew up the llone. Thevct fays, the perfon

here fpoken of was a monk of Friburg , oamed Con·

íJantine An :Iun; but Bdleforet

an~

olhers hold it to

he Banholdus Seh wanz, or the blaek; at le¡fI it is af·

rormed, Ihat he firfl ,"ught Ihe ufe uf il to Ihe Ve·ne·

liAn" in the year

1390,

ouring the wa¡ IVilh Ihe Ge·

nnefe. Hut wlm

rontradi~\s

Ihis aeeount, anel

fhc~'s

~l1n'powder

be of an oldcr date, is, that Peter

Mexia, in hi. V"il' Leétion.,. relms, Ih.t Alpilor..

Ii" XI

king of CafliJe, ufed morlars ag:,inll the

Moors

fiege in t

14) ,

Duraoge adds, Ih,1I Ihere is

OIcn,ion

m.oe

of tI,is powoer in Ihe rcgillcrs

01'

Ihe

ch'Olhers of accounts in Franee,

early as the year

Y6L,

11.

¡~c,

53,

G U N

13)8;

and friet BaeoD, our eouotrym:m, mention.

th. eOOlpofilion in expref, lerms, in his matife De

oullitate magi:t, pubJ.fhed at Oxford, in the

ye.r

121 6,

CUN·SHO T·WOUNDS, See

SURGERV.

GUNTSBERG , a town of Germany in Ihe arele of

Swabia, fituated on the eaH fide of the O. nube: E,

long, tOO

11',

N, lat,

35',

GUNTER's LINE, a

lo~arilhnllc

lioe, ufually gtaduated

upon feal" , f<étors,

&le,

is alfo calleó the line of lines, and line of oom·

bers ; being ooly the logarilhm1 gradualed upoo • ruler,

whieh tlJerdore ferves

fol ve problems inlhumental·

Iy io the fame maoner as logarltbros do arithmecieally.

is ufoally dividtd into an hundred p,m, every

tenlh whereof is ownbered, beginoiog with

and

ending wilh tO; fo that, if Ihe forll grea! divifion,

m"ked

[land for ooe temh of any imeger, thenext

di.ifioo, marked

willlland for tWO tenths ;

Ihree

tenths, and fo

00 ;

and lhe intermediate divifions \ViII,

in like manner, reprefent toodth pms of th. fame in–

teger, If eaeh of the great ¿ivifioos reprtfent

iD–

legm, then wíll the letrer di,ifions nand for integers

and if Ihe greate< di,ifions be fuppofed eaeh

100,

Ihe

fubdivifions \Vdl be eaeh

10.

Ufo

O[ GUNl

SR 'S

LI NE.

l .

find

Ih.

prllÁllfl

I'W,

nN7IIb,,!,

From

exteod Ihe eompatres lO the multi·

plier; and the fame exteot, applied the Carne way froOl

Ihe multiplieaod,

will

reaeh to Ihe produét Thus iY

the produét of

and

be required, extend the com–

patres from t (o

and that extent laid from

Ihe fame

way, \ViII reaeh

32,

thei r produét,

divide enr

nU11Ib" b,

anolhu.

The exteot from Ihe divifor to

uoity, will reaeh from the dividend to the quotient :

thDS, to divide

extend the eOlllpatres from

to t, and Ibe (ame extent will reaeh from

the quotient fought,

Ihru

givm

nllmb'TI, Id

jind a [o"rlh

pro~rlional,

Suppofe the oumbers

6, 8, 9;

extend Ihe eompatres from

and Ihis

extem, laid from

the fame way, will reaeh to

12,

the founh proportional required,

find

a m,an

proportis.al

bd'Wt(n

an,

1'!l10

giVM nU/llóu!.

Supo

pofe

and

32 ;

extenJ Ihe eompatrcs from

io tlle

left hand pIn of the line, tO

iD Ihe righl ; IhenbiC.

feéting th·s di[tanee, ils half will reaeh from

foro

\\'ird, or from

bacltward, to t6, lhe mean propor–

tional fough!.

ro ,xlrafl

¡I,.

fl¡lIar~

rool o[

a.,

nn/l/bu,

Suppofe

2í;

bill"ca Ihe dillanee between

on the feale and Ihe point repref.nting

25 ;

Ihen Ihe

h.lf

of this diflanee, fet off from

\ViII give the point

repref,·nting the root

í'

Ihe f.1me manner, Ihe

cube roOl, or thal of any higher pow/r, may be founJ

by divioing Ihe di[hnce on Ih< line, belwcen t aoJ

the giveo number, into

many

~qllJI

pms

the in

dex

,,f

the po\\'er .xpreflcs ; ti¡,

one of Ihofe parts,

fet from

\ViII find Ihe point rrprcfcoting the root

required ,

GUN

TER

ctll A

NT, ooe ma le of \Vooo, brafs,

&le,

eonlaining

kinJ of

IIc":ug'

"p',ie projeétion of the

fphere, on the planc of ,he equi"uétial; !he eye

be~

io~

fuppofed plJecJ in nne of lhe pules,

·1·

B G

GUNTrÚ