When the
cement is to be used, it must be gently liquified by placing the vial
containing it in boiling water. The vial must be well closed with a
good cork, not glass stopper, as they become forced. It is applied to
the broken edges by a camel's hair pencil.

When objects are not to be exposed to the moisture, the White of an Egg
alone is mixed with finely powdered Quicklime, will answer very well;
Shellac dissolved in water is better.

A very strong cement for all earthenware is made by boiling slices of
Skim-Milk Cheese and Water into a paste, then grinding the Quicklime in
a marble mortar, or on a slab with a mallet.

TO MEND IRON.--Mix finely some sifted Lime with the White of an Egg
till a thin sort of paste is formed, then add some Iron Filings. Apply
this to the fracture and the vessel will be found nearly as sound as
ever.

PATENT GLUE.--One pound fine Isinglass and one pint Rain Water, boil
and prepare an ordinary glue, then add slowly, stirring continually,
two ounces Nitric Acid, bottle and it is fit for use. It will
permanently adhere to wood, leather, paper and everything else. It
sells for twenty-five cents an ounce; by keeping it secret Spaulding
has made a fortune out of it; read his advertisement. Truly it is a
young fortune to a good peddler.

PATENT BLACKING.--One gallon Alcohol, one ounce Sulphuric Acid, one and
one-half pounds Gum Shellac; let stand 48 hours, then add one-fourth
pound of Ivory Black. Let stand 24 hours, then carefully pour off the
top. This is ready for use and is water-proof. This recipe cost $50; is
for the polish of all leather. It sells in four ounce bottles at $1 per
bottle.

STENCIL CUTTING.--Take a thin copper or brass plate, lay flat on the
side, then take a sharp edged steel, write thereon the same as common
writing, but press sufficiently hard to cut through the plate. To mark,
lay the plate thus cut upon the cloth, and apply ink by means of a
brush to the back of the plate, and it will wet the cloth where the cut
is made by the writing. A little practice will enable a person to cut
beautifully. There is money to be made at this. Some make $10 a day.

GLUE FOR CEMENTING PAPER AND LEATHER.--Take Isinglass and Parchment
each one ounce, Sugar Candy and Gum Tragacanth each two drachms, add to
them one ounce Water, and boil the whole together till the mixture
appears (when cold) of the consistency of Glue; then pour it into any
form you please. If this glue be wet wit