employed, to lay the colouring on evenly.

When the stains for _wood_ are required to be very strong, it is
better to soak and _not_ brush them; therefore, if for inlaying or
fine work, the wood should be previously split or sawn into proper
thicknesses; and when it is necessary to brush the wood several times
over with the stains, it should be allowed to dry between each
coating.

When it is wished to render any of the stains more durable and
beautiful, the work should be well rubbed with Dutch or common rushes
after it is coloured, and then varnished with seed-lac varnish, or if
a better appearance is desired, with three coats of the same, or
shell-lac varnish. Common work only requires frequent rubbing with
linseed oil and woollen rags. The remainder, with the exception of
_glass_, will be treated in the following sections:

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1414. Alabaster, Marble, and Stone.

Alabaster, marble, and stone, may be stained of a yellow, red, green,
blue, purple, black, or any of the compound colours, by the stains
used for wood.

1415. Bone and Ivory. _Black_.

i. Lay the article for several hours in a strong solution of nitrate
of silver, and expose to the light.

ii. Boil the article for some time in a strained decoction of
logwood, and then steep it in a solution of persulphate or acetate
of iron.

iii. Immerse frequently in ink, until of sufficient depth of colour.

1416. Bone and Ivory. _Blue._

i. Immerse for some time in a dilute solution of sulphate of
indigo--partly saturated with potash--and it will be fully stained.

ii. Steep in a strong solution of sulphate of copper.

1417. Bone and Ivory. _Green._

i. Dip blue-stained articles for a short time in nitro-hydrochlorate
of tin, and then in a hot decoction of fustic.

ii. Boil in a solution of verdigris in vinegar until the desired
colour is obtained.

1418. Bone and Ivory. _Red_.

i. Dip the articles first in the tin mordant used in dyeing, and
then plunge into a hot decoction of Brazil wood--half a pound to a
gallon of water--or cochineal.

ii. Steep in red ink until sufficiently stained.

1419. Bone and Ivory. _Scarlet._

Use lac dye instead of the preceding.

1420. Bone and Ivory. _Violet._

Dip in the tin mordant, and then immerse in a decoction of lo