Bookbinding, and the Care of Books
[Illustration: FIG. 1.]
The use of hollow backs was a very ingenious way out of the difficulty, as with them the backs could be made to "throw up," and at the same time the leather was not disturbed (see fig. 1, C). The method of "sawing in" bands was known for a long time before the general use of hollow backs. It has been used to avoid the raised bands on books covered with embroidered material.
If a book is sewn on tapes, and the back lined with leather, there is no serious objection to a carefully-made hollow back without bands. The vellum binders use hollow backs made in this way for great account books that stand an immen