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J

A P

Chernut·coloured

j~pln.

Tdke indian red, grind it

",ilh iGng.glafs file upon a porphyry.none, till Ihey are

as fof[ and as line as bumr • [hen mix alude whi[c lead,

which griodnrongly; aod,lanly, lamp·black, iodue pro·

F°rtion.

A tortoife·fl,ell japao. Firn Iay a white ground, as

before direaed; Ihen wi[h proper colou rs, as vcrmilioo,

auripigmeot,

6c,

duly mixed wilh [urpenlioe·varnilh,

II reak and cloud or Ihadow the while ground \Vilh any ir·

regular Caney at pleafure, io imilatioo of wrtoife·lhel l :

theolet il llaod

10

dry, and nriking it here and there\Vilh

reddilh.yellow varnilh , mixed wilh a lillle cinnabar,

c10ud the work ,up and down, touching it up alCo with

varnilh mixed with lamp or ivory black, oHaving done

this, varnilh it five or fix times over \Vilh the finen

white varnilh , 'Ieuing it dry bel\Veeo every walbing.

Japanning wilh gold file. The fi ze being laid over

that pan only which you intend lO gild, as already di·

reaed, let il

rem~in

Ihm till it is

Co

dry, Ihat whenyou

put your finge r on it, it be glulinous and clammy,

bUI not fo moin Ihal Ihe panicles Ihould come off \Vilh

your fingers ,

lt

is in this temper Ihat Ihe goldis 10be

applied: Ihentake apiece

oC

walhinglealher, or Ihe like,

and IVrapping it round your fore 6nger, dip il in Ihe

gold dull, and rub il \Vhere your gold fize is laid; for

it will fiick no where but on [he fize ; and if any gold.dun

lies aboul your work , brufl, il a\Vay \Vilh a fi ne

cle~o

varnilhing brulh, Then, IVilh your pencil, draw Ihat

paTl wilh gold fize alfo wbich .s defigned for your copper,

and lelling il dry as io lhe former cafe, cover it over

Wilh copper dun inIhe fame manner, Having done lhis,

lay your fIlver fize; and \Vheo il is dry, as beCore, lay

on your filver·dun, as io Ihe IWO former, BUI il is to

be

obferved, lhal Ihe melalline colours are 10 be Iaid

fuccellively one after anolher, leuing each be covered and

Ihoroughly dry beCore you enle! upon a dinina colour,

Afler

. 11

Ihefe, Ihe olher colours which are nOI melalline

are 10 be laid ,00 \\ilh gum·IVater, referving Ihe rock,

óc,

for Ihe lall paTl

oC

Ihe work, Lel your file be

oC

a due confillence, neilher lOO Ihick nor too Ihin, Ihat ,

il may run rmooth and clean, See S, lE.

Jap,oning melal, wilh gum·water, Take gum waler,

pUl il inlo amulfd·fllell; wilh which mix fo much of

'Your metal or colour as may give il a proper confiOence,

folhal il may run fine aod rmoolh: having prepared and

well mxed your metals and colour9, lay 00you r defign ;

)'our gum: waler being

Ihorol1~hly

dried, you are lO

r~rr

il over wllb fine fced·lac varnllh, aod aflerward9 pohlh

.and clear il.

l ayiog rpecklts or nrey/ings on japao·work, To do

this, .eilher 00 oUI(¡Je or infide boxes, drawers,

Oc,

.mix your fpeeklcs wilh

ordin~ry

lae·varnilh, fo mueh

al

may make il fi lIOwork, but nOI fa Ihick as for colour,

and mix lliem weH IVilh a proper brulh, \Varm lhe

work 10 be dooe gently by Ihe (¡re, and ",ilh a peneil

-waOl il over with Ihe former mixlure : andIVhen il is dry.

repeal it again, aod fo oflen lill yoor fpe,kles lie as Ihick

aod even as you defire. When il is Ihoroughly dry, go

overandbeau liry Ihe work Ihree or four limes with fced·

h e

varnilh miXI wilh lurpcnline, and fo lel i[ dry, and

~he

work is finilbed, c¡¡cepl you have amiod tOpoliOl it.

J

A V

BUI if you pol.1h il, you mun walh it eight or ten

limos over Wilh Ihe belt feed·lac varOlIh. letting il Uand

10 dry evcry lime; aod

aflerw~rds

pol.ilh it, as before

dire~ted,

AII rorts

oC

colou red fpeckles may be lhus

ufed, excepllhofe of filver ; Ihe laying 00 of ",hich

requircs lhe bell and fi nell

oC

lhe lae.varnilh, or the

belt IVhile VHOIOl,

wh.ch

mun make il 61 for polilh.

ing ; bUl if you have nOI a mind lO pulilh il. fewer

" alhes of Ihe varnilh will be rullicienl.

Japanned and laquered wareof Ihe Ean iodies, pay

dOly for every

100

1.

grors value al lhe fale 381. on

impOr\alioo, aod the drawback is 35

1.

12S,

ffd, 00

ex portatÍon.

j ASMINUM, in bOlaoy, agenus of Ihe diandria moDo·

gynia clafs. The corolla confiUs of five fegmeots ,

Ihe berry is tricoccous ; and Ihe feed is arillaled,

There are úx fpecies. none oflhemnatÍves of Brilaio,

JASPER, innalural hinory, agenus of fcrupi, of acomo

plex

irre~ular

nruéture, of greal variely of colours,

and emulalíng Iheappearaoce of Ihe fioer marbles, or

femipellucid gems,

The greal charaéterifiic of jafpers is,' tha! they all

readily Urike fire wilh ileel, aod make 001tbe lean

drervercence wilh aquafortis,

Jafpers, Ihough commonly reckoned among the pre·

cious nones, ought uodoubledly 10 be ranged amoog

the ferupi ; 'being only opake cryllalline malTes, vari–

ouOy debafcd wilh an earthy admixlure : and ID

Ihis lall ingredienl il is lhat Ihey olVe aH Iheir va·

riely of colours, as white, greeo, red. browo, ¡od

bluilh,

.

The reveral kiods of nephritic Ilone, aod Ihe Iapus

divinusor jade, are all geouine jafpers; bUI the bard,

brighl, gm n jafper of lbe Ean [ndies, feems 10 be

the true kiod ,

lt

is fouod io malfes of m ious fizes

and Ihapes; but Ihe more ufual Ilaodard as lOúze, is

bellVeeo four aod fix inches io diammr ; but thereare

malfes of il found

oC

a fool or more in diammr, and

olhers no larger Ihan a horfe bean.

lt

is genmily

fimplt and nnmixed: but if it be variegaled al all, il

is allVaysIVilh while; aod this is dirpofed nOIinllreaks

or veins, bUI in clouds, 11 is capable of a very "De

polilhl; and whenlhe while clouds are weH difpored, is

verybeauliCul; and, inpi¡cesDOl too Ihick,

n

tolmbly

pellurid, when held up againll Ihe lighl,

JASPONYX, in natural hil!ory, Ihe purel! hOTO·colour–

ed onyx. wilh beauliful green Iones, which are com–

pored of Ihe genuine maner of lhe fioen jarpers. See

] AS Pt R

and ON

YX •

JASQYES, a POTl·IOIVO ofPerfia, filuatedon Ihe gulph

ofOrmus: E, long,

58°,

N, lal.

25°,

JATROPHA, Ihe

CASSADA PLANT,

in bOlany, a ge–

nus of

I~e

monetcia monaddphia clafs, T he Dlalehas

DOcalix : Ihe corolla confinsof one Cunoel·Olaped pe·

tal ; and Ihe Ilamina are len, The female has

n~ ~a·

lix; Ihe corolla cnr.(¡ns of five pelals; Ihe n)'h are

Ihree, and bifid; thecal'rnle has Ihree cells, and con·

tains bUI one fted. Thcregre feven fpecies, none of

Ihemnalives or Brilain.

JAVA, an iOand of Ihe Ean [ndies, fi lua:cd bel\Veen

102°

aod 113

°

of

E.

longilude, aod bwmn 5

°

and