Fig. 25. Sewing on cords. a, stitch around the cord.
Fig. 26. Lacing cords into boards.
Fig. 27. Detail of holes and trough for cords.
Fig. 28. Board pulled down ready for the head to be cut.
The book is now put into the backing boards in the press and glued and backed as described in dealing with the Library Binding.
Lacing Holes.
Two boards, as wide as the book and one-fourth of an inch longer, are cut from heavy tar or mill board. The boards are placed in proper position closely up against the joint projection of the back, and marks perpendicular to the back edges of the boards, are made, indicating the positions of the cords. At each mark and about one-half of an inch from the edge, a hole almost as large as the cords, is made with an awl from the outside, and the projections caused by the awl are trimmed off. Then about one-half inch from these holes, another row of somewhat smaller holes is made. These holes are not in the lines drawn from the edges of the boards, as is shown in Figs. 26 and 27, and are punched from the inside, leaving the projections caused by the awl.