in the cutting press, and
after wiping the edge with a waxed rag, burnish well with a flat agate
burnisher.

TO RESTORE THE LUSTRE OF MOROCCO LEATHER.

The lustre of morocco leather is restored by varnishing with white of
egg.

TO RESTORE THE ORIGINAL WHITENESS OF COPPER-PLATE, WOOD ENGRAVING, ETC.

The following process will restore the original whiteness of copper-plate,
wood-engraving or printed matter:--Place a piece of phosphorus in a large
glass vessel; pour in water of 30 deg. centigrade (that is 86 deg. Fahrenheit)
temperature until the phosphorus is half covered. Cork up, but not
tightly, the glass vessel, and lay it in a moderately warm place for
fourteen hours. Damp the paper that is to be bleached, with distilled
water; fasten it to a piece of platinum wire and hang it up inside the
glass vessel. The faded paper after a short time will regain its original
white color. It should then be taken out and washed in water; next drawn
through a weak solution of soda, and finally dipped in pure water and laid
on a glass table, and thus made dry and smooth.

FOR ELECTROTYPING ON CHINA.

For electrotyping on China and similar non-conducting materials:--Sulphur
is dissolved in oil of spike lavender to a syrupy consistence; then
chloride of gold or chloride of platinum is dissolved in ether, and the
two solutions mixed under a gentle heat. The compound is next evaporated
until the thickness of ordinary paint, in which condition it is applied
with a brush to such portions of the china, glass or other fabric as it
is desired to cover, according to the design or pattern, with the
electrometallic deposit. The objects are baked in the usual way before
they are immersed in the bath.

PAINTING ON EBONIZED WOOD.

The great difficulty to be overcome in painting on ebonized wood, is the
non-absorbent character of the surface, which will not allow the paint to
sink in. Washing the panel over with onion juice enables the paint to
adhere more easily. The paint, whether oil or water color, must be laid on
thickly. In order that the painting, whether of flowers or figures, shall
prove a decoration, the black space between the painted figures must be
graceful in shape. Water color paintings on such panels require to be
varnished. Oil color does not need the varnish.

HOW GILDING IS DONE.

Letters written on vellum or paper are gilded in three ways. In the first
a little size is mixed with the ink, and the letters