the surface of your waxen egg, and then, having smeared
it with spirits of turpentine, rub the surface all over. So as
_nearly_ to obliterate the marks of the needle point.

2548. Diaphanie.

This is a beautiful, useful, and inexpensive art easily acquired, and
producing imitations of the richest and rarest stained glass; and also
of making blinds, screens, skylights, Chinese lanterns, &c., in every
variety of colour and design.

2549. Imitation of Coloured Glass.

In decorating his house an Englishman spends as much money as he can
conveniently spare; the elegances and refinements of modern taste
demand something more than mere comfort; yet though his walls are hung
with pictures, his drawing-rooms filled with bijouterie, how is it
that the windows of his hall, his library, his staircase, are
neglected? The reason is obvious. The magnificent historical old
stained glass might be envied, but could not be brought within the
compass of ordinary means.

Recent improvements in printing in colours led the way to this
beautiful invention, by which economy is combined with the most
perfect results. A peculiar kind of paper is rendered perfectly
transparent, upon which designs are printed in glass colours (_vitre
de couleurs_), which will not change with the light. The paper is
applied to the glass with a clear white varnish, and when dry, a
preparation is finally applied, which increases the transparency, and
adds tenfold brilliancy to the effect.

2550. Imitation of Half-Light.

There is another design, printed in imitation of the half-light
(_abat-jour_); this is used principally for a ground, covering the
whole surface of the glass, within which (the necessary spaces having
been previously cut out before it is stuck on the glass) are placed
medallion centres of Watteau figures, perfectly transparent, which
derive increased brilliancy from the semi-transparency of the
surrounding ground. This is by far the cheapest method, though
involving extra trouble, as the plain grounds printed in sheets are
only a fourth the price of the sheets which contain the medallion
Watteau centres or other small designs suitable for the purpose.

2551. Sheets of Designs.

The transparent sheets measure 20-1/2 in. by 16-1/2, and are ready for
immediate use. The other articles required are some clear white
varnish, some liqueur diaphane, brushes, metal palett