es, and ivory
sticks. These are all the appliances required.

2552. Calculation of Quantities.

To ascertain the quantity of designs required, measure your glass
carefully, and then calculate how many sheets it will take (the sheets
being 20-1/2 in. by 16-1/2 in. as given above). The sheets are
arranged so that they can be joined together continuously, or cut to
any size or shape.

2553. Practical Instructions.

Choose a fine day for the operation, as the glass should be perfectly
dry, and unaffected by the humidity of the atmosphere. Of course, if
you have a choice, it is more _convenient_ to work on your glass
before it is fixed in the frame. If you are working on a piece of
unattached glass, lay it on a _flat_ table (a marble slab is
preferable), over which you must previously lay a piece of baize or
cloth to keep the glass steady.

The glass being thus fixed, clean and polish the side on which you
intend to operate (in windows this is the inner side), then with your
brush lay on it very equably a good coat of the prepared varnish; let
this dry for _an hour_, more or less, according to the dryness of the
atmosphere and the thickness of the coat of varnish; meantime cut and
trim your designs carefully to fit the glass (if it is one entire
transparent sheet you will find little trouble); then lay them on a
piece of paper, face downwards, and damp the back of them with a
sponge, applied several times, to equalize the moisture.

In ths operation arrange your time so that your designs may now be
finally left to dry for fifteen minutes before application to the
glass, the varnish on which has now become tacky or sticky, and in a
proper state to receive them. Apply the printed side next to the glass
without pressure; endeavour to let your sheet fall perfectly level and
smooth on your glass, so that you may avoid leaving creases, which
would be fatal.

Take now your palette, lay it flat on the design, and press out all
the air-bubbles, commencing in the centre, and working them out at the
sides; an ivory stick will be found useful in removing creases: you
now leave this to dry, and after twenty-four hours apply a slight coat
of the liqueur diaphane, leaving it another day, when, if dry, apply a
second coat of the same kind, which must be left several days;
finally, apply a coat of varnish over all.

2554. Probable Results.

If these