previously be warmed by the fire, with an even
coating of the mixture.

When the mixture becomes hardened upon the plate, sketch the desired
object upon the surface, then take an etching point, a large needle
fixed in a handle will do, and cut through the wax to the surface of
the copper, taking care to make the lines as distinct as possible.

This being done, raise a border of wax all around the plate, then pour
strong Nitric Acid on the plate to the depth of an inch. The Acid will
eat away the copper in those places which have been bared by the
etching point. From time to time pour off the acid and wash the plate
to see how the work is going on. Stop up with wax those places that
appear to be etched deep enough, pour Acid upon the others, and let it
remain until the process is completed. This done, melt off the wax
clean the plate, and the etching is ready for the press. This is an
employment from which a good remuneration may be derived.

MAHOGANY FURNITURE VARNISH.--Take of Proof Alcohol one quart, cut
therein all the Gum Shellac it will take, add two ounces of Venice
Turpentine, and coloring to suit. This makes a beautiful polish and
will wear for years.

WATER-PROOF FOR LEATHER.--Take Linseed Oil one pint, Yellow Wax and
White Turpentine each two ounces, Burgundy Pitch two ounces, melt and
color with Lamp Black.

TO TAKE STAINS OUT OF MAHOGANY.--Mix Spirits of Salts six parts, Salt
of Lemons one part, then drop a little on the stains, and rub them till
they disappear.

CEMENTS.--Cements of various kinds should be kept for occasional use.
Flour paste answers very well for slight purposes; if required stronger
than usual, boil a little Glue or put some powdered Resin in it. White
of Egg, or a solution of Glue and a strong Gum Water are good cements.
A paste made of Linseed Meal dries very hard and adheres firmly. A soft
cement is made of Yellow Wax, melted with its weight of Turpentine, and
a little Venetian Red to give it color. This when cool is as hard as
soap, and is very useful to stop up cracks, and is better to cover the
corks of bottles than sealing wax or hard cement.

The best cement for broken china or glass is that sold under the name
of Diamond cement; it is colorless and resists moisture. This is made
by soaking Isinglass in water until it is soft, and then dissolving it
in Proof Spirits; add to this a little Gum Ammoniac or Galbonam or
Mastic, both dissolved in as little Alcohol as possible.