1653. After the under surface of the leaf has been sufficiently inked, apply it to the paper, where you wish the impression; and after covering it with a slip of paper, use the hand or roller to press upon it, as described in the former process. (See 711, [page 176.])
1654. Impressions from Coins.—Melt a little isinglass glue with brandy, and pour it thinly over the medal, &c., so as to cover its whole surface; let it remain on for a day or two, till it has thoroughly dried and hardened, and then take it off, when it will be fine, clear, and as hard as a piece of Muscovy glass, and will have a very elegant impression of the coin. It will also resist the effects of damp air, which occasions all other kinds of glue to soften and bend, if not prepared in this way.
TRANSFERRING TO GLASS, WOOD, Etc.
1655. The process of transferring consists in causing the ink of a print, engraving, mezzotint, or lithograph, to adhere to the surface of glass, wood, cardboard, ivory, or earthenware, which is effected by cementing the face of the prints to their surface by means of some varnish or glutinous transparent body that will not dissolve in water, and then destroying the texture of the paper, so as to leave the ink upon the varnish and material operated on, in the same manner as if the original impression had been there, but of course reversed.
1656. Materials.—The body to which the print is to be transferred.