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 directions are carefully followed, your glass will never be affected by time or any variations in the weather; it will defy hail, rain, frost, and dust, and can be washed the same as ordinary stained glass, to which, in some respects, it is even superior.