3. On the back edge of the loose leaf put a little paste. Lay the leaf in place and close the book for a second, then open and push leaf in place with folder. This method is used with whipstitched books.
The first two methods are generally used with books sewed in the ordinary way on tapes or cords.
Sewing in loose sections and loose leaves.
1. Loose back books. Thread a darning needle three inches long with Barbour’s linen thread, No. 40, or Hayes’s linen thread, No. 20. Open the book in the middle of the loose section. Near the top and bottom of the fold will be seen holes made by the binder. Pass the needle through a hole near the top, and out between the book and its loose back. Do not pull the thread clear through. Drop the needle and thread between the back of the book and the loose part of the binding to the bottom, then run it from the outside into the middle of the loose section through the hole at the bottom thereof, and tie at the point of beginning. Insert Japanese guard over thread. This holds the section in fairly well. Always guard a section before replacing by pasting a half-inch strip of bond paper, folded in the middle, along the folds.
2. Tight-back books. Cut a guard of jaconet or bond paper three-fourths of an inch wide and as long as the book. Sew the signature to the middle of this guard and then paste the guard in the book, attaching half of it to each of the leaves adjoining the loose section.
Broken bindings. Books in publisher’s cloth, which are breaking out of their bindings, are mended in some libraries with considerable success as follows:
The case is taken off with care. If possible, the lining of the boards is removed in such a way as to permit of its being put on again. The super is removed from the margins of the boards and from the back. Necessary repairs are made to end leaves and stitches are taken in the book when out of the case, if need be. The back of the book and the end leaves are then covered with a thin coat of flexible glue. The book is then again put together. This glues the back of the case directly to the back of the book, making it a tight back. It is reported that books thus repaired wear very well. Newark has not had success with this kind of work.
Fly leaves and end papers. To add a new fly leaf. Cut suitable paper just the length of the leaves of the book but half an inch wider, fold over the half inch and paste it; attach this half inch to the last fly leaf in the book, close to the joint.
If a book has two or more fly leaves, very often you can save much time and still have your work look well by turning the first leaf back and pasting down the page facing.