SPLIT BOARDS

While the old method of lacing-in is not desirable in library binding, the method of using split boards makes a very strong book. Instead of making a case of cloth, or cloth and leather, the back lining and the bands (or tapes) are inserted in boards which have been split, or between two thin boards glued together with a space left unglued for this purpose. The covering material is put on after the book is in boards and the book is made tight backed. This is probably the strongest method of attaching a book to the boards. In fact it is stronger than is necessary for any except very heavy books which receive hard wear. (Fig. 12.)