Case. 1. A cover for a book made independently of the book, i. e. the boards are not laced in. 2. Cover made to fit over book already bound in order to protect it.
Case bindings. Books in which the boards and covering materials are made into a case and the book glued into it. Term generally applied to commercial work, which is practically all done by machinery.
Casing-in. The operation of putting a sewed and forwarded book into its case.
Catchword. In old books and in a few modern books the first word of a page is printed under the last line on the preceding page. This is called the catchword.
Center tools. Specially-cut tools for ornamenting the centers of panels.
Circuit edges. Projecting flexible covers turned over to protect the leaves of the book. Used almost wholly on Bibles and prayer books. Sometimes called divinity edges.
Clasp. A catch for fastening the covers of a book together.
Clearing-out. The process of removing the waste paper and paring away superfluous leather on the inside of the covers before pasting down end papers.
Cloth boards. 1. Boards covered with cloth. 2. Boards used for the sides are sometimes called cloth boards instead of mill boards.
Collation. An examination of a book to see if it is complete. May be done by signatures before book is bound. Must be done page by page in books which are to be rebound.