1512. When the drawings have had sufficient time to dry, take a fine brush and cover every part of them (without touching the glass) with a coat of parchment size or liquid gum, which prevents the oil color (which is next applied) from sinking into or becoming absorbed by the paper.
1513. When the interior of the vase is perfectly dry, and any particles of gum size that may have been left on the glass have been removed, your vase is ready for the final and most important process.
1514. You have now to tint the whole of the vase with a proper color to give it the appearance of porcelain; for up to this time, you will recollect, it is but a glass vase, with a few colored prints stuck thereon.
1515. Select from your stock of prepared colors, in bottles, the tint most appropriate to the kind of china you are imitating (as we are now supposed to be making a Chinese vase, it will be of a greenish hue), mix fully sufficient color in a glass vessel, then pour the whole into the vase.
1516. Take now your vase in both hands, and turn it round continually in the same direction, until the color is equally spread over the whole of the interior: when this is satisfactorily accomplished, pour back the remainder. If the prepared color is too thick, add a little varnish to the mixture before applying it.