GILDING OR COLOURING THE EDGES OF A CUT BOOK
Gilding the edges of a book cut in boards is much the same process as that described for the trimmed book, excepting that when gilt in boards the edges can be scraped and slightly sand-papered. It is the custom to admire a perfectly solid gilt edge, looking more like a solid sheet of metal, than the leaves of a book. As the essential characteristic of a book is, that it is composed of leaves, this fact is better accepted and emphasised by leaving the edges a little rough, so that even when gilt they are evidently the edges of leaves of paper, and not the sides of a block, or of something solid.
To gild the edges of a cut book the boards should be turned back, and cutting boards put on each side of the book flush with the edge to be gilt. For the fore-edge the book must be thrown up with trindles first, unless it is desired to gild in the round, a process which gives the objectionable solid metallic edge.
After the edges have been gilt they may be decorated by tooling, called “gauffering.”
This may be done, either by tooling with hot tools directly on the gold while the leaves are screwed up tightly in the press, or by laying another coloured gold on the top of the first and tooling over that, leaving the pattern in the new gold on the original colour. But, to my mind, edges are best left undecorated, except for plain gold or colour.
If the edges are to be coloured, they should be slightly scraped, and the colour put on with a sponge, commencing with the fore-edge, which should be slightly fanned out, and held firmly, by placing a pressing-board above it, and pressing with the hand on this. The colour must be put on very thinly, commencing from the centre of the fore-edge and working to either end, and as many coats put on as are necessary to get the depth of colour required. The head and tail are treated in the same way, excepting that they cannot be fanned out, and the colour should be applied from the back to the fore-edge. If in the fore-edge an attempt is made to colour from one end to the other, and if in the head or tail from the fore-edge to the back, the result will almost certainly be that the sponge will leave a thick deposit of colour round the corner from which it starts.
For colouring edges almost any stain will answer, or ordinary water-colours may be used if moistened with size.
When the colour is dry the edge should be lightly rubbed over with a little beeswax, and burnished with a tooth burnisher (see [fig. 57]).
