screen, with the black side downwards; then place a pattern above it,
with the right side uppermost; place a weight here and there, to prevent
it slipping; then trace over the outline with a rather blunt stiletto.
On removing the paper, you will find the outline of the pattern
transferred to the surface of the screen. Trace over the outline,
and shade, in lines, with a fine camel's-hair pencil dipped in Newman's
lamp-black; fill in with the same.

_Varnish_.--Place four ounces of rectified spirit of wine in a
wide-mouthed bottle; add one ounce of gum sandarac, a quarter of an
ounce of gum mastic, and a drachm of camphor, all in powder. Put a
stopper in the bottle, set it near a fire, and shake it occasionally.
When all the gums are quite dissolved, add one ounce of oil of
turpentine; then strain through muslin into another clean, dry
wide-mouthed bottle. Let it stand a day or two before using.

_Mode of Varnishing_.--Take a large clean new varnish-brush, dip it into
the bottle, and then cover over all your screen with it. When perfectly
dry, give it another coat, and so on till it has had six coats; let it
remain untouched for two days; rub it smooth with sand-paper; then give
it two more coats of varnish, and repeat the rubbing, being careful to
wait between each coat till the last is dry, and not to rub with
sand-paper sooner than two days after varnishing, and never give more
than two coats of varnish in a day--one in the morning, another at
night. When you think it looks clear and sufficiently thick, give it
another coat without using the sand-paper after it; let it stand four
days; then rub it all over with pounded rottenstone, and wipe it off
with a wet cloth; after which take a little Florence oil and
hair-powder, and polish with your hand.