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.chmun 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
2·