Fig. 42.
| Fig. 43. | Fig. 44. |
It is a mistake to suppose that a very heavy hammer is necessary for backing any but the largest books. For flexible books a hammer with a comparatively small face should be used, as by its use the book can be backed without flattening the bands. It is well to have a hammer head of the shape shown in [fig. 43]. By using the thin end, the force of a comparatively light blow, because concentrated on a small surface, is effective.
At [fig. 44] is shown an ordinary backing hammer.
CHAPTER IX
Cutting and Attaching Boards—Cleaning off Back—Pressing
CUTTING AND ATTACHING BOARDS
The first quality of the best black board made from old rope is the best to use for “extra” binding. It will be found to be very hard, and not easily broken or bent at the corners. In selecting the thickness suitable for any given book, the size and thickness of the volume should be taken into account. The tendency of most modern binders is to use a rather over thick board, perhaps with a view to bulk out the volume. For manuscripts, or other books on vellum, it is best to use wooden boards, which should be clasped. From their stability they form a kind of permanent press, in which the vellum leaves are kept flat. In a damp climate like that of England, vellum, absorbing moisture from the atmosphere, soon cockles up unless it is held tightly in some way; and when it is once cockled, the book cannot be made to shut properly, except with very special treatment. Then also dust and damp have ready access to the interstices of the crinkled pages, resulting in the disfigurement so well known and so deplored by all lovers of fine books.