with spirit of wine, which will take out all spots, and give them
a fine polish. Varnished doors may be done in the same manner. Never
use any cloth to _frames_ or _drawings_, or oil paintings, when
cleaning and dusting them.

419. China and Glass.

The best material for cleansing either porcelain or glass, is fuller's
earth: but it must be beaten into a fine powder, and carefully cleared
from all rough or hard particles, which might endanger the polish of
the surface.

420. Porcelain.

In cleaning porcelain, it must also be observed that some species
require more care and attention than others, as every person must have
observed that chinaware in common use frequently loses some of its
colours.

421. Red Fading.

The red, especially of vermilion, is the first to go, because that
colour, together with some others, is laid on by the Chinese after
burning.

422. Modern Porcelain Fades Less.

The modern chinese porcelain is not, indeed, so susceptible of this
rubbing or wearing off, as--vegetable reds are now used by them
instead of the mineral colour.

423. Temperature with China and Glass.

It ought to be taken for granted that all china or glass ware is well
tempered: yet a little careful attention may not be misplaced, even on
that point; for though ornamental china or glassware is not exposed to
the action of hot water in common domestic use, yet it may be
injudiciously immersed therein for the purpose of cleaning; and as
articles intended solely for ornament are not so highly annealed as
others, it will be proper never to apply water beyond a tepid
temperature.

424. Annealing Glass.

An ingenious and simple mode of annealing glass has been some time in
use by chemists. It consists in immersing the vessel in cold water,
gradually heated to the boiling point, and suffered to remain till
cold, when it will be fit for use. Should the glass be exposed to a
higher temperature than that of boiling water, it will be necessary to
immerse it in oil.

425. To take Marking-Ink out of Linen.

Use a solution of cyanide of potassium applied with a camel-hair
brush. After the marking ink disappears, the linen should be well
washed in cold water.

426. To take Stains of Wine out of Linen.

Hold the articles in milk while it is boiling on the fire, and the
stains will soon disappear.

427. Fruit Stains in Linen.

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