I N D
ARTIFICIAL Gems in imitation of
oriental pearls — - 269
--to prepare mercury-water ; to f jrm
large pearls out of (mall ones — 271
-to imitate precious itones, &c. 272
-parte or imitating an oriental
topaz - - - 273
- an artificial chryl'olite ; a diamond
or a ruby - -274
-to polifh gems — — 276
-of counter-drawing camieaus. in-
talios, and other gems preferved in
the feveral muleums of Europe 277
BRONZING ; colouring bulls and figures
to reprelent copper — - 222
—— prccels to prepare the metaline
powder ; eafy method to produce gold
powder, and aurum moiaicum 223
-argentum mulivum ; bronzing by
loft leather infteadof cement — 224
-gold fize the belt binding ; filver
bronzing by means ofmufivum argen-
tum — — - 22C
CASTING; to prepare clay for moulds
to calt gold, filver, S:c. in •— 202
■-to make moulds of clav to call:
bral's ; moulds which need not be
heated to call metal in - 203
-preparation of Mantua earth for
moulds ; a particular fort of mould
to call exceedingly fine ; to imprefs
bafs relievo, on medals, in imitation
of ivory - - 204
-toimprefs medals and other things
in bafs relievo on paper ; to call vege-
tables in moulds particularly prepared
for filver - — 20;
-to call all forts of things in gold,
fdver, or other metals - 206
-to caft v egetables and infects 207
-to place inlects, &lc. to call from 208
-a Cmple plain method to cad vege-
tables or infects in another manner 209
-to call figures in brimflone ; all
kinds of fmall birds, frogs, fiih, (Jtc. :io
-how to caft fmall fnot; calling an
image or animal in plailter -211
-to call wax, medals, iStc. in bais
relievo - - 212
-how to call them like jafpis ib.
-to caltfiih, reptiles, fruit, &c. in a
pewter plate, or dim — - 213
— figures in Laiitauoji of ivory 214
E X.
CASTING, with marble colours in plan-
ter ; a fand to call with nicety 215
-to call horn and wood in moulds,
as fine as ivory, and of a fragrant
feell - - _ _ 2S4
-mixture for catlipg mirrors, and
other things fjr opticks - 217
-another, anfwering the fame pur-
pofes — — — — 2:8
-a third fort of fteel mixture for
mirrors —— - 219
-to call iron, fteel, and prepare
. arfenic glafs — —— - 220
-to call iron as white as filver ; to
call plaiiter of Paris on copper 221
- a mixture f ;r impreffions of any
kind, which will become as hard as
ftone - - —— 222
-to imprefs figures in imitation of
porcelain - - ib.
COLOURS, method of preparing the
different kinds ufed in painting 43
Clafs L RED.
-fcarlet, or tending to orange 44
-crimfon, or tending; to purple ib.
-verm'liion, its qualities —— ib.
-procefs for preparing vermillion
to great perfection — — 45
-means to detect dealers who lo-
phitlicate vermillion with red lead 46
-native cinnabar, red lead or mi-
num, fcarlet oker, and their ufes 47
-prepartion of icarlct o'er — 48
-common Indian red, its ufe and
preparation - — 40
-Venetian red — - ib.
-Spanifh brown - — 50
-calcined or burnt terra di flenna ib.
-carmine - —--ib.
-lake, manner of extracting it 51
-role pink, and its prepartion 53
-red oker — - -54
Clafs II. B L U E.
-ultramarine — - 54
-bed modern method of preparing
the ultramarine pigment — 55
-its properties and bad confequence
if adulterated - — 57
-ultramarine allies, and how to pre-
pare them — — — 58
-PrutTian blue and preparation 59
-verditer — -■ 61
— bleu de Ceildre , or Sanders blue 62
o COLOURS;
ARTIFICIAL Gems in imitation of
oriental pearls — - 269
--to prepare mercury-water ; to f jrm
large pearls out of (mall ones — 271
-to imitate precious itones, &c. 272
-parte or imitating an oriental
topaz - - - 273
- an artificial chryl'olite ; a diamond
or a ruby - -274
-to polifh gems — — 276
-of counter-drawing camieaus. in-
talios, and other gems preferved in
the feveral muleums of Europe 277
BRONZING ; colouring bulls and figures
to reprelent copper — - 222
—— prccels to prepare the metaline
powder ; eafy method to produce gold
powder, and aurum moiaicum 223
-argentum mulivum ; bronzing by
loft leather infteadof cement — 224
-gold fize the belt binding ; filver
bronzing by means ofmufivum argen-
tum — — - 22C
CASTING; to prepare clay for moulds
to calt gold, filver, S:c. in •— 202
■-to make moulds of clav to call:
bral's ; moulds which need not be
heated to call metal in - 203
-preparation of Mantua earth for
moulds ; a particular fort of mould
to call exceedingly fine ; to imprefs
bafs relievo, on medals, in imitation
of ivory - - 204
-toimprefs medals and other things
in bafs relievo on paper ; to call vege-
tables in moulds particularly prepared
for filver - — 20;
-to call all forts of things in gold,
fdver, or other metals - 206
-to caft v egetables and infects 207
-to place inlects, &lc. to call from 208
-a Cmple plain method to cad vege-
tables or infects in another manner 209
-to call figures in brimflone ; all
kinds of fmall birds, frogs, fiih, (Jtc. :io
-how to caft fmall fnot; calling an
image or animal in plailter -211
-to call wax, medals, iStc. in bais
relievo - - 212
-how to call them like jafpis ib.
-to caltfiih, reptiles, fruit, &c. in a
pewter plate, or dim — - 213
— figures in Laiitauoji of ivory 214
E X.
CASTING, with marble colours in plan-
ter ; a fand to call with nicety 215
-to call horn and wood in moulds,
as fine as ivory, and of a fragrant
feell - - _ _ 2S4
-mixture for catlipg mirrors, and
other things fjr opticks - 217
-another, anfwering the fame pur-
pofes — — — — 2:8
-a third fort of fteel mixture for
mirrors —— - 219
-to call iron, fteel, and prepare
. arfenic glafs — —— - 220
-to call iron as white as filver ; to
call plaiiter of Paris on copper 221
- a mixture f ;r impreffions of any
kind, which will become as hard as
ftone - - —— 222
-to imprefs figures in imitation of
porcelain - - ib.
COLOURS, method of preparing the
different kinds ufed in painting 43
Clafs L RED.
-fcarlet, or tending to orange 44
-crimfon, or tending; to purple ib.
-verm'liion, its qualities —— ib.
-procefs for preparing vermillion
to great perfection — — 45
-means to detect dealers who lo-
phitlicate vermillion with red lead 46
-native cinnabar, red lead or mi-
num, fcarlet oker, and their ufes 47
-prepartion of icarlct o'er — 48
-common Indian red, its ufe and
preparation - — 40
-Venetian red — - ib.
-Spanifh brown - — 50
-calcined or burnt terra di flenna ib.
-carmine - —--ib.
-lake, manner of extracting it 51
-role pink, and its prepartion 53
-red oker — - -54
Clafs II. B L U E.
-ultramarine — - 54
-bed modern method of preparing
the ultramarine pigment — 55
-its properties and bad confequence
if adulterated - — 57
-ultramarine allies, and how to pre-
pare them — — — 58
-PrutTian blue and preparation 59
-verditer — -■ 61
— bleu de Ceildre , or Sanders blue 62
o COLOURS;