When an order for binding is being made up each book is entered on a numbered slip, pen-carbon or other copying paper being placed between the slips and the counterpart below. Dates can be stamped to save time. The slips are then detached and placed in the books to which they refer. An ordinary order form is then made out in some such terms as: Mr.................... will please bind as per contract and separate instructions the ............ books sent herewith, comprising numbers ......... to ............ The binder’s messenger can sign the book on the last counterfoil, in a form like this: Received on .......... from the ................ Public Library ...... volumes for binding. Or a rubber stamp with these words and blanks can be used. The object of the progressive number is to afford a ready means of identifying instructions and ascertaining in an easy manner the number of books bound in any one year. These numbers may also be written in ink at the end of the letterpress of each book, as a means of ascertaining how often any book has been re-bound. The price, if carried into the column reserved for the progressive number in the counterpart, will also be a useful record to keep. By simply referring to the progressive numbers it is possible to ascertain the price paid for successive re-bindings, and to keep a check on the whole of the work. =343.= Repairs should not be entered in this book. It is better to use an ordinary order sheet and copy it in the press order book. It can be headed: Mr............ will please re-case the following books: or Mr............ will please repair the following books, as per instructions added to each: =344. Miscellaneous.=--Tape or ribbon BOOK-MARKS are sometimes placed in public library books, but a much more obvious and useful plan is to print a special book-mark with a folding-over tab, which can be placed in _all_ books which are issued, and not confined simply to those which are re-bound. A good form of marker can have one or two pointed rules for the due care and preservation of books printed on a conspicuous part. Some enterprising firms give away book-marks of various kinds, many publishers insert advertising cards which serve as markers, and occasionally an advertising agent will supply a library with book-marks, and pay for the privilege, on being allowed to use some part of it for advertisements from which he draws the revenue. =345.= Special END-PAPERS have been introduced in a few libraries to be placed in re-bound books. They serve the purpose of an ownership mark more effectually than a book-plate, but, of course, they can only be used in the books which happen to require re-binding. The Croydon end-paper is quite an elaborate design, giving compartments showing the arms, monogram and a view of the town hall. End-papers of this kind are a luxury which few public libraries can afford.