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common wilh Ihe vcgmble turbilh, whoCe name it halh

IhereCore laken.

To (ombint Mmur, 'UJi/h [/I/phur. JF./biopJ Mintra/.

MIX a

dr~m

of fulphur wilh Ihree orams of qnirk.

film, by Iriturating Ihe whole in a glafs monar wilh a

gl.fs

peOle. By degrees.

you trilurate¡ the mercury

\ViII difappear, and Ihe maller will acquireablack colour.

Conlinue {he Iriture lill you cannol perceive Ihe leall

panicle of running mercury. The black mmer you will

Ihen have in Ihe monar is known in medicine by Ihe

llame of

.e/hio/,J mimr6/.

An a:thiops may alCo be made

by fire in Ihe lol!owing manner.

In a Ihal!ow unglazed eanhen pan melt une par! of

flowers of Culphur : add Ihree par!! of running mercury,

making il fal! into Ihe pan io the form of Cmall rain, by

f,¡ueezing ít Ihrough chamoy leather. Keep lIirring Ihe

mixlure with the Ihank of a lobacco·pipe all the while

the mercury is falling: you will Cee Ihe maller grow

tbick and acquire a blaek colour. Wi&en the whole is

thoroughly mixed, Cet fire to it witb a match, and let

as m'ucn of Ihe fulphur buro away as will flameo

To [ubUmt /ht (DI.hina/ion

Mmur, . nd Sulphur

in" Cinah6

GllND

powder a:lhiops mineral prepmd by 6re.

Put it iOto a cucurbit; 6t therelo a head; place it in a

fand·b,lIh, and beginwilh applying fuch a degree of neat

as is requiGle

fublime fnlphur. A black maner will

rife, and adherc tO Ihe Gdcs of Ihe vell'el. When no·

lhing more will rife with this degree of heal, raiCe Ibe

r.re

fo as tO make the fand and the bonomof Ihe (DCnr–

bit red; and Ihen the remaining maller will fublime in

the form of a brownilh r.d mafs, which is lrue

cinabar.

To diJo/vt Mmur, in /ht Ni/rouJ acid. SURdr,

Mercuria/ Pmipilalu.

PUT

into a matras the quaOlilyof mercuiy you inleod

10 dill'olve: ponr on it an equal quaolity of good fpirit of

nitre, and Cel the matras ina fahd·balh moderately heat·

ed. The mercury will dill'olve with the phcnomena that

ufually anend the dill'olutions of mmls in thia acid.

When the dill'olution is completed, lel Ihe liquor cool.

du will know that the acid is perfeélly faturated, if

thm remain at Ihe bOllom of the veITel, nOlwithOanding

Ihe heal, a liule globule of mercury that will not dif–

folv~

Mercury dill'oh'es'in the nitrous 3cid with much more

lacility, and in much

gre~ter

quantilY, Ihanin Ibe , itrio–

lic ; fo thal it il OOt necefl'ary, on Ihis omfion, tO make

Ihe liquor boil. This folulion when cold yields cryllals,

which are

nilrous mercurial fall. If you defire

have

a clear limpid folUlion of mercury, you mutI employ an

119".forIÍl

Ihat i, not tainted with vitriolic or marine

¡ .

eid: for, tI,e aflinilY of thefe tWO acids wilh mercu,y

being greatcr than Ihat of the oitrous acid. they preci–

pil.le

il in Ihe form of a white powder, when ¡hey al'C

mixed wilh Ihe Colvenl.

ltlercury Ihlll precipitm d in a white powder, OUt of

Colulioa tbetCof

the fpirit of nitIe,

ufcd

in medio

cine. To ohlain this preeipitate, which il known by the

name of the

'UJhi/. prrcipilale,

Cea fall, dill'olved o wa·

ler, togelher wilh a liule f,l ammoniac

uCed; aod the

pmipitate is wafhed feveral limes in pure wmr, wi!h–

OUI which precautioo il would be co"pGve, on

ac~ount

of Ihe great quanlity of Ihe marine acid which it would

contain.

The preparalion known ""y Ihe name of

rtd pmipi–

Ja/c,

is alfo oblained from our folulion of mercury in rpi–

rit of nitre.

is made hy abf!raéling all the moillure

of (be folulioo, eilher by dillillation in a mon, Or by

evapomioo in a glaCs bafoo fel

a Cand-balh. WbeD

it begins

grow dry, it appears like a white

ponderou~

maC,. Tben the fire is made IIroog enough to drive off

almoll all the nitrous acid, which, being now coocen'

tralcd, rifes in Ihe

Corm

of red vapours. If. Ih& va–

pour! be cm hed io a rcceiver, they condeoCe inlo a li–

quor, whicb is a very IhOllg aod \·aOly Cmoking Cpirit of

nitre.

By degrm, as Ihe nitrous acid is {oreed up by Ihe

Gre, the mercurial maCs 10Ces ils white colour, and be–

comes firll ye!low, aod at lan very red. When il is be·

come eotirelyof this lall coloul, the operalioo is 6nifhed..

The ' red mafs remaining is a mercury thal contains but

very little acid, in cOlOparifon of !Vhat il did while it w;u

white: and indeed the 6rt! wbite mafs is fuch a viulent

corroGve, !hal it cannot be ufed in medicine; whereas,

when il is becolOe red, it makel an excellent eCcharotic,

which IhoCe who know how to

uC~

il properly apply witjl

very great fueceCs, panieul.r1y tO veoer,,1 u1cers,

Tocombine Mmur, 'UJith Iht ¡{cid 01 Seafall. Corro·

foe Sublima/t.

EvAPORA

a folution of men;ury io the nitrous acid

ti!llhere remain only a while powder, as mentiOlled in

our obfervations on the precediou procefs. Wilh !his.

powder mix as much grcen vitriol calcined tO whiteneCs,

and decrepitated fca.falt, as Ihere was mercury in the fo–

IUlion. Triturate the whole carefully in a glaCs monar.

PUt this miXture into a mmos,

Ihattwo thirds Ihereof

may remain emply, having firll cut of!' the neck tO half

ils lenglh : or inllead thmof youmay ufe an apothecary's

phia!. Sel

yo.ur

vell'el io a Cand·balll, and pUt fand

round it

high as the COntenl1 reach . Applya mo–

derm 6re at úrll, and raife it by Oow dcgrees. Vapours

will begio lO afccod. e ODlinue the fire in Ibe Came de·

gree ti!l they

~eafe.

Then 1I0p Ihe mouth of Ihe "eOi l

wilh paper, and increaCe the ure till the bouom tlf Ihe

fand·balh be red·hol. Wilh Ihis degree of hm a Cub–

lil11m \ViII rife, aod adhm lO the inGde and upper par!

thevclTe!, in Ihe form of while, femi.tranfparent cry–

lisis.

Keep up Ihe 6re

Ihe (ame degree till nOlhing

more Cublimes. Then let the vell'el cool; break il.

~nd

lake OUt what is fubJimed, which is

(orrofivt

["~¡;malt.

s""al Sub/imatt.

four parts of corrofive

Cublima~C"i

pulmife il

in a glaCs or marble mortar

add by lillle and linle time

pms of mercllry revivified from cinabar; triturm the

\IIhole careCu!ly, tilllhe mereury

perfcélly lilJed, fo

tbu