co-aluminium, and to reduce the ashes formed
from the protective coverings of sal-ammoniac, fat, glycerine, etc.
The addition of the aluminium also reduces the thickness of the
coating applied. Cold and hot galvanized plates appear to stand
abrasion equally well. Both pickling and hot galvanizing reduce the
strength, distort and render brittle iron and steel wires of small
sections.

THE END.

INDEX.

A

Amalgam process in tin-plating, 59.
Appliances and apparatus used in japanning and enamelling, 29.

B

Battery process in tin-plating, 59.
Black grounds, 11.
---- japan grounds on metal, common, 12.
---- paints, 52.
---- pigment, 46.
---- stain for iron, 53.
---- varnish for sewing machines, 56.
Blue japan grounds, 9.
---- pigment, 46.
Brass, polished, colours for, 49-57.
Brick ovens, 33.
Bright pale yellow grounds, 10.
Bronzing composition, 49.
Brown japan, 57.
Bunsen burner, 33.

C

Carriage varnish, 51.
Colours for polished brass, 49.
Common black japan grounds on metal, 12.
Composition for bronzing, 49.
Cream enamel, 8.

E

Enamelling and japanning stoves, 29-46.
---- ---- ---- ---- heated by direct fire, 34.
---- ---- ---- ---- heated by hot-water pipes, 36.
---- or japanning metals, 20-28.
---- old work, 27.

F

First stage in the japanning of wood, 5.
---- ---- in the japanning of leather, without a priming, 5.

G

Galvanized iron, painting on, 49.
Galvanizing, 61-66.
Golden varnish for metal, 51.
Green japan grounds, 10.
---- pigment, 46.
Ground, red japan, 10.
---- scarlet japan, 9.
---- tortoise-shell, 12.
Grounds, black, 11.
---- black japan, 12.
---- blue japan, 9.
---- bright pale yellow, 10.
---- green japan, 10.
---- japan, 6-19.
---- orange-coloured, 11.
---- purple, 11.
---- white japan, 7

H

Heating stoves by direct fire, 34.
---- ---- by hot-water pipes, 36.
Hern's process in tin-plating, 60.

I

Immersion process in tin-plating, 59.
Iron, black stain for, 53.
---- galvanized, painting on, 49.
Ironwork, varnishes for, 55.

J

Japan, brown, 57.
---- ground, red, 10.
---- ---- scarlet, 9.
---- ---- grounds, 6-19.
---- ---- black, 12.
---- ---- blue, 9.
---- ---- green, 10.
---- ---- white, 7.
---- work, painting, 13.
---- ---- varnishing, 17.
Japanese gold size, 14.
Japanese lacque