Cracked or scaling painting, to preserve, 119
Crayons, method of making, 28, 29.

for drawing on glass, 30.
Cream-colour house paint, 108,

to dye silk, 32.

Cream of tartar, 239.

Cream soap, 386.

Crimson marking ink, 346.

to dye cotton, 37.
silk, 33.

woollen, 36.

vat, 39.

spirit, 39.

woollen spirit, 40.

Crocus, 404.

Crown glass, 54.

Crude flux, 350.

Crystallized tin-plate, 337.

Curled maple carriage graining, 84.

Curved glass, silvering, 315.

Cutler's cement, 22.

Cutlery burnishing, 409.

Cutting glass, 57.

pebbles, 405.

pencils, 1.

books, 394, 395.

Cyanide of calcium, 241.

copper, 241.

gold, 241.

potassium, 242.

potassium, ordinary, 242.
silver, 241.

cement, 23.

Electric cement, 25.

Electro-chromic rings, coloured, 221.

deposits, platinum, 219.
metallurgy, 170.

aquafortis for bright lustre, 172.
bright lustre for small articles, 175.
compound acids, dead lustre, 173.
dipping in compound acids, 172.
dipping in nitrate of binoxide of mer-
cury, 173.

lathe for scratchbrush, 175.
scratchbrushing, 174.

whitening bath, 172.

Electro-plating, silver, 211.

to prevent silver turning yellow, 214.

tinning, 186.

Electrotypes, to bronze, 20.

Emerald green, 95.

Emery, fastening on leather, 329.
Enamelled paper, 428.
Enamelling slate, 393.
Enamels for glass, 56.

for porcelain, 48.

for porcelain painting, 48.
Engineers' cements, 25.
Engravers' lamp, 146.

shade, 155.

Engraving, aqua-tint, 164.

copper-plate, 168, 169.

Hammerton's brush process, 164.
negative process, 165.
positive process, 166.
resin-ground, 164.
on silver or gold, 169.
on steel, 152.
steel cylinders, 154.
on stone, 152.

- on wood, 146.
chisels for, 148.

Engravings, mounting, 8.

―to clean, 28.

to transfer on glass, 57.

Enlargement of negatives, 285.
Enlarging woodcuts, 411.
Essence, shaving, 386.
Etching, 154-168.

aquafortis, 156.

aqua-tinta, engraving, 162.
dry-point, 159.

glass, 168.

in, for printing on stone, 152.

on cast iron, 168.

on steel, 167, 168.

Fireworks, coloured lights, 135.

coloured stars, 128.
crackers, 139, 144.
crimson stars, 129.
drawing-room, 137.
golden stars, 129.
golden rain, 130.
green lights, 135.
green stars, 129.
Japanese matches, 137
lances, 133, 134.
lightening paper, 137.
nitrate of strontia, 129.
portfires, 130.
purple lights, 135.
quickmatch, 131, 138.
red lights, 135.
rockets, 124-127.
roman candles, 130.

rose-coloured stars, 129.
silver rain, 130.
squibs, 138.
tailed stars, 128.
touchpaper, 131.
tourbillons, 135.
violet stars, 129.
white lights, 135.
white stars, 129.
yellow lights, 135.
yellow stars, 129.
Fireproof cement, 24.
Fireproofing shingle roofs, 117.
Fishing lines, waterproofing, 369.
Fish oil, 373.

Fixing magic-lantern prints, 288
Flatting, 108.

Flexible ivory, 371.
Flint glass, 53.

Flock gold size, 306.

Floor-cloth, manufacture of, 369.
Fluxes, 349.

Flux, for arsenical compounds, 350.

GAS BALLOONS, VARNISH FOR, 73.
fittings, to bronze, 18.

Galvanic batteries, Bunsen's, 178.
Callaud's, 181.

charge of the, 179.
Daniell's, 177.

Grenet's, 180.

Grove's, 180.

keeping in order, 179.
Marie-Davy, 180.
metallic deposits, 181.
porous cells, 181.
Smee's, 180.

Watt's, 181.
Galvanic etching, 233.
Galvanizing iron, 335.
Galvanoplasm, 223.
acid baths, 225.

adhesive deposits, 226.
amalgamating salt, 225.
apparatus for amateurs, 224.
baths, 223, 233.
batteries, 225.

dead-lustre gilding, 226.

deposits without adhesion, 226.

filling with brass solder, 232.

finishing up the articles, 232.

high relief, gutta-percha moulds, 231.
imitation mosaic work, 234.

large apparatus, 224.

metallization by wet way, 228.

metallization of ceramic articles, 227.

moulds and mouldings, 227, 232.

rendering baths impervious, 234.

non-metallic substances, 227.

operations with gold or silver, 232.

phosphorous in bisulphide of carbon, 228.

plumbago, 227.

porous cells, 225.

separate batteries, 224.

thick deposits, 223.

undercut patterns, deposits on, 231.

Gelatine, 243, 342.

solution in tannin process, 285.

Gellart's green, 95.

German silver, 11.
Frick's, 13.
soldering, 364.
to polish, 403.

Gilding, 188, 199, 296.

burnished or water, 298.

by amalgamation, 307.

diluted bath, 191.

dipping, 188.

fire, 202.

mercury, 202.

stirring and gold amalgam, 191.
colouring proces, 189.

Glass and porcelain, globes, silvering, 317.
hard, for colour, 54.
manufacture of, 53.

Glass or crystal, gilding on, 190.

painting and staining, 55.
painting for magic lantern, 58.
plate, 54, 55.

ribbed plate, 55.

seals, to make, 340.
sheet, 54.

silvering curved, 315.
soluble, 54.

spicule, silvering, 316.
stains and enamels, 56.
staining, black flux for, 56.
stencilling upon, 58.
strass, 54.

to anneal, 57.

to draw upon, 58.
to powder, 60.

to transfer engravings on, 57
tubes, bending, 60.
varnish, 72.

writing upon, 58.

Glazes, ceramic ware, 44-47.