gum anima, into a pint of spirits of wine, in a closely stopped
bottle, place the bottle either in a sand bath, or in hot water,
till the gums are dissolved, then strain off the mixture, shake it
up with a 1/4 of a gill of the best clear poppy oil, and put by for
use.

134. FINISHING POLISH

Put 2 drachms of shellac, and 2 drachms of gum benjamin, into 1/2
pint of the very best rectified spirits of wine, in a bottle
closely corked; keep the bottle in a warm place, and shake it
frequently till the gums are dissolved, when cold shake up with it
2 teaspoonsful of the best clear poppy oil, and it will be fit for
use. This polish may be applied with great advantage after any
of those mentioned in the foregoing receipts have been used. It
removes the defects existing in them, increasing their lustre and
durability, and gives the surface a most brilliant appearance.


135. COMPOSITION USED IN WELDING CAST STEEL

Take of borax, 10 parts; sal-ammoniac, 1 part; grind or pound them
roughly together, then fuse them in a metal pot over a close fire,
taking care to continue the heat until all spume has disappeared
from the surface, when the liquid appears clear, the composition is
ready to be poured out to cool and concrete; afterward being ground
to a fine powder. To use this composition, the steel to be welded is
raised to a heat, which may be expressed by bright yellow, it is
then dipped among the welding powder, and again placed in the fire
until it attains the same degree of heat as before, it is then ready