There are several minor matters of routine or arrangement not dealt with in other places. Dusting is usually underdone in British libraries. For one thing there is rarely a sufficient supply of cloth dusters; often a dirty one, stowed away in a drawer, is all the provision for a large library. Clean dusters should be attached by means of rings or clips to every bookcase and cupboard throughout a library, and the staff should be required to use them on every possible occasion. Certainly a book should never be handed to a reader in a dusty condition, as not only may the reader be offended, but he must inevitably transfer the dust from the outside to the inside of the book in handling it. There would be much less dust among book-shelves if a liberal supply of dusters were allowed and constantly used. When books are being dusted systematically a large tray or box of wet sawdust should be provided. Into this the books should be dusted by means of a brush. It is also a good plan, whenever possible, to take very dusty books out to the open air, and smartly beat them together, two at a time. This drives the dust out more effectually than anything else. Vacuum cleaners which work by means of suction are sometimes useful in cases where large accumulations of dust require to be removed, and not simply redistributed, but a powerful variety is necessary as the smaller vacuum cleaners remove the top layer of dust as a rule, and leave a solid substratum. Wood block and linoleum covered floors when treated with wax polish do not require to be scrubbed, and the surface remains smooth, and cleaning is reduced to a minimum. There are various floor preparations which are said to be effectual in keeping down dust, but most of them produce discoloration in the course of time, and periodical scrubbings should be arranged to restore the original colour of the flooring. CHAPTER XXII BOOKBINDING AND REPAIRING =329. General.=--Public library binding is an art by itself, and is quite distinct from ordinary commercial bookbinding on the one hand, and artistic binding on the other. A binding which is strong enough to withstand the handling of its owner and his friends, and beautiful enough to please the taste of the fastidious amateur, may be practically useless in a position where it may have to endure the handling of hundreds, or even thousands, of different persons, all of whom are not equally educated in the proper use of books. A public library book requires to be bound neatly and strongly, with particular regard to the integrity of the stitching rather than to its mere covering, although this has to be considered in the case of much-used reference books.