1000000030

G L A

( 717

~l.,,:c

1c:og

nirr~J

"p,

(rom

lim~ I~ li",~.

Ihal

lh~

afl,es m.l)' lI.rurporale • ilh Ihc lI"iu, aOlI

, 11

ilS (JIIS

111'

<Ktr,lék'¡: lhln Ihe I'drcl is lilkJ up ",ilh flew

"'dl~r,

""o!

botled el cr

a~o in,

lill "nc

h.lf

he con("llleu ;

\,.1,.1< rcmdin, i, .1 li'r! o( Ice, Olungly

impl <~lldleJ

\lIlh (,I:t. This I,e, hoilcd o\(r .g,lin In Irel1, eop'

pelS, Ihiek,"s in alJII"IIlITnIY(UIII houls. aml ll",ulS

jll I,dl; which is

he I.Jkd OUI, as I<SIholll5 , inlu

e.trlhcrn r,lnS, anu Ihenre illlO "ooden

rJ"

dr:tin

anJ .Ir)'. This .Iune, il i! gll,fly pllunJcd, a",1 Ihus

pUl in •

ren

ln, c,lIcd colear, 10 Jry.

may be

".I.krl, Ihal lh

are olher pldlltS. heGdes

bit, \\

hidl

;oid.1 a [,It fi l (or gl.l:s: (ueh

",e

Ihe . Iga, or

I~a

weeJ,

the

e~llInlOIl

IV:t) ·Ihllll<, lmmble, hors, IVormlVoo.l,

,,"oad. lob.eeo, (ern, and Ihe

hole Iegumillous !tibe,

:15

pe.(e. bc,lns,

0".

T ite (.nu or Done, e,lllc,1 by the artiOs Tar(o, is

the lecond ing¡t'd ,cnt in 61JIs,

;¡nJ lhat

whi~h

gir(s

,he bcdy and li,mne(s . Thcfe tlunes,

Ag'

icola ub·

(erl'cs. mui! be (u,h ., will (u(, : ,nu uf ,h& (ueh

as ale \lhite aOll lran!pJrenl are bdl; (o that erytl.1

clt,llengcs lhe

pl,et~ency

or all odlelS.

\'enicelh,

ehidly u(e a (ort o( pthblc, (ounJ

in lhe river Telino, rdembling \lhite ma,ble, and col·

Icd cuogolo.

I "~"cd

Ant. Noi alrures us, that all

flonlS whieh ",ill lI,ike fire Wilh

net!,

~rc

fi l

vitrify:

but Dr

~Ie"

r,1~1\

s, tlut lhere are fome exception,

from Ihis rule. Flints are

~dmirüble;

.ml IVhen cal·

cinrd, powd<red, .no (e",ch(d,

m.ke

apure white

cryO,lIine metal: bpt Ihe espenee o( prepa,ing lhem

makes Ihe mallers of our gl.(s hou(es (parinll o( thei ,

(c.

Whll'c p,ope, 1I0ne, cannol be (o conveniently

had, (and is u(ed; whieh fllOuld be white, and (mall,

and well walhcd,

~t(ore

it be 'pplied: (uch is u(u.J1y

found in the mOllths ,nd fides of ,ivers. Ou,

gl~rs.

hou(es are (urnilned wilh a fine f.,nd (o, CI yOal, f,om

M.idllone; the Came wil" that u(ed fo, (and boxts, and

in (courine; .nd wilh • coar(er (or ereen gl_(s (rom

Woohlieh.

Fu,

cryO~1

ClaCs, to.

200

,(o,

pouncJed fine, Ihey pllt

130

lb of (alt of pulmine;

lOix Ihl'm "'r,etil". ana pu t ,hem into the cale", a

(ort of leverbe,ato,y furnace, being firl! wdl hemd .

lIere they ,(m, in baking, frying, and e:llelning, {or

five hOI:rs, du,ing whieh lhe

workm~n

kecps mixing

thcm " ith . "ke, tOnlJke them ineorpo,. te : wh.n tao

kcn oel, the mixlI"e is lalled

(rII,

o, boJlilO.

Jt m, y

h,:

rurther

o~(c,vcd,

that glJ(s might

OlJ,jC

imm~di"el)'

mehine the materials wnhollt

lhus e.llrinin::, .nd 1TI,lking Ihem frit : but Ihe ope,.·

1:lln

wo~ld

I'e nlllch mure I(dious.

~I. f,

mueh h"Je' Ihan any preparcd in Ihe eom·

mon way m:,)' be maje by means uf bOr:IX, in Ihe Ivl·

lowin.

m.nl,

c' '1,ke (uu, ouoces uf

b,,,~x ,

and an

u"n~coo(

fine ,,;hite

I~r.d,

" ,Iuwl

pO" der, aro.l lI1< It

Ihun

10~lIher

in a l.rlle dIle cr"cihlt fel in • 1\10.1

(u,o.e~, hepio~

" nrong fi,e Cor h,tIf

:<11

hour : li:.n

Ilkc vut lh : cr',,_ible, allrl, \l hen enld. ""ak il; . n.1

lhue \Viii he ,i-und " Iloe hOllom • 1,.,,1,

P'""

1')"1,,

r.lp;

thlc

f¡(

untlll~

cnmnlOn

i.lr

,dmur:

jl~l·

...

tll;

IlHln,1,

Tlm

t'>'p 'lIl1.cnt

d"ly

Vdl itd

Lj~

I)r

~j¡ t\l.

m,I)'

!c ,d

\.OL. !J .

¡.; ,

¡6.

f~ml': Ctl:.r.~el't\~II~'

itll?I ·,rClh:lI": 11\

ti,:

',It

1.1.1(:.

C:II,lmrl""

Ami

.trllli~I,1 1 g~'IIU .

dl';'.\S

I¡:,

,111 ( Xpt'!.ll

UIIS IllltlhJd 01' 11I,¡klllJ;

r,ld(s

,', id,out

Iht, lile

¡i.,,,!

[. Its,

h,eh h.s

g~"c

..lly bICn

17,(lII ~J

1 ""

di'

I.I, '¡

ingrcuiclIl in

¡;I.d~ ,

;md

V.IHCh 15

tllt:

IOgrl:d'':lll

th,ll

A""s .:ooml/l" gl.l(s its le/",, (s;

",,1

is nllt yct

knuwn, "hrille, e"lcined ayll. I, ," mil, r fuloll ' "11'

beiog addr.d to Ihis

r.lt,

iolie.IJ

of (""J , il

mi~!1I

nll:

m.ke

a glals _I'pro.,. hing tu th,' nat"'e

01' •

di'lIlond .

A'""IJ

(;I.A~s.

Oi'

Ihefe m,"e,i. Js

1":

h."e "" "y

(on< o( gJ.tls mad<, I\hich may p,illcip"Jly be

d,/lll"

~utlJ.eJ

acco,di,,~

Ihei, b<auty:

tité c,yn.IIJ",(

tI ds,

th. e'yll.1 whité gl.lfs, Ih<

~'tl'n

gJ..(s, antl

Ihe b"ulc f,LI!;. Ag :in Ihr(c

(<I·<r.•

1(011' u e di!!.II·

gllir:,ed hy Ihei,

((ve,

,,1u(es: as plJlé or

cu.eh

gl,ll~s,

I"oki"~

gJ.lfl'es, optie gldír...

6c.

hieh ere m..le

the I,¡jl lort.

Thc

Í<:onJ Cun ill"h,ces C'o",n

g!a(¡,

I~)'S,

I'hi. ls. drinkiog.&

I.fr"

eCo

The

Ihird 1011 is

IVd l

I.no

",n b), its culuur,

;",J

:he

(ecunJ

ilS fo,m.

EJloJ c"I,"rd

GLA1S

is Il'"de IhIlS: PUl 'inlO a pot

cr),{lal (,il, thrice wafllrJ in lVate,; tinge Ihis lVil h

man;¡.n le prrparcd inlo a e1c.. purple , 10 Ihis aud

alllmen e"i","" li/lul fine in fili al1 'I"anlil;es,

.lId ,[

lelcral tlllleS; Ihis will make Ihe gl. l's gr'0W ycllowilh,

and a liltle led.lin"

b~t

nOt bl:tektlh, .ml , I"ays d,ili.

p:\les Ihe mang.n&. The lall lime

)'011

add manga–

ne(e, gi" e no mll,e

Ihe alumen eativum, IInle(s the

colour be too rull. Thus will Ihe glars be exatlly of

the colou, o( Ihe

bal,~·

,ub)'.

lid

CLASS.

A blooJ-,ed gla(s may be made in Ihe

following nldoner:

PUl

r.x

pounds of glal, of leau,

and ten pounds 01' COlllnlOn gIJ(s, into a pot glazeJ

with while gla(s, when lhe ",hole is boiled and rtfi.

ned, add, by (m,,1I quantities, and

(m,dl uiOaoees

of time, eoppe, ealcined tOa nJne(s, as mllch as, on

repmed p'oo(s, is (ouod (,,!lieient: then add tartar in

powder by (malJ quanliti., at a lime, tiJl thé

1,ls"

become as red as blood; and cootinue aduin. one Or

olher o( Ihe ingredienlS tilJ Ihe colour js quite pero

re<'l.

YdlO'UI

LASS.

is • neeelTa?

re~l3rk

in r,laCs.m.king ,

that Ihe e,)'II. 1el.(s made w"h lalt Ihat has an ,dmix.

ture o( tarta'

",,11

nCl'e' recei oe the true gnld yello\\',

Ihou~~

it will

,11

oth~r

colollrs , for )'ello\\' gl.l(¡,

thc,dore, a (.1 mulI be prel'ared (rom polverine, Or

pot a!hes alont,

r.lake Ihe gIJ(s.

FunltlctJ

r.,

tI,<

IIInk;,(~

LA ISo

In this n",,,ur.tlure,

there

;re

thlee

(1)113

cr ("rnaces; one. c;dl..

calc.Ir

is for the (rit; ,he (eeond is (or l\'orktn.

Ih~

gla(,: lhe third Cc,ves

dnncallhe g!.l(S, and ís·e,dleJ

lht

I~er.

S I'C

FV R NA C~ .

Ile e:.icor

(1'1Jle

>- CVll.

fig.

J. )

re(elllbles , "

ovcn ten

f<Lt

I ..op" (even hro"d, .nci t",o

U~lp:

Ihe

(ud , III 'h

111

En~land

¡, (.:, ell,ll, is pU l inlO

;¡

Irrn,h

on une

lidl.!

(Ir tlll;

IUrI·a.:c: :

~lId

Iht

1/ tOle re:\':

".Hin"

(rolO Ihe ro,,1 "IHln lite Int. e"lcHles it. '1he

l ,{

rurn;I':~.

wOlkiflg hu nl"e

1) lound. ut 111('.:

y.lrJs didIlHII..I,

AII.J tWI)

"I~h ;

dnl~

pr" I'Cll flltlh:d .

di\hlt.:d

¡nh,

dlftl'

1'11'\.

l;,ld l

n" \qll,h 15 v.lldt.

l"!.

T !I;

IJw .r

rJrt

I~'

rllo.·.. ,I}

t.l!I.,'

ti,.: . \"'.

.111