Bolt, folded edge of the sheets in an unopened book.

Cancels, leaves containing errors, which have to be discarded and replaced by corrected sheets. Such leaves are marked by the printer with a star.

Catch-word, a word printed at the foot of one page indicating the first word of the page following, as a guide in collating.

Cutting boards, wedge-shaped boards somewhat like backing boards, but with the top edge square; used in cutting the edge of a book and in edge-gilding.

Cutting in boards, cutting the edges of a book after the boards are laced on.

Cutting press, when the lying press is turned, so that the side with the runners is uppermost, it is called a cutting press (see [Fig. 46]).

Diaper, a term applied to a small repeating all-over pattern. From woven material decorated in this way.

Doublure, the inside face of the boards, especially applied to them when lined with leather and decorated.

End papers, papers added at the beginning and end of a book by the binder.

Extra binding, a trade term for the best work.