Libraries, as well as larger information networks, are necessarily based upon the storage of information files consisting in many cases of written materials and texts such as books, serials, abstracts, manuscripts and archives. At the present stage of the "information explosion" no librarian can afford to ignore the contribution of modern computing equipment and advanced language processing methods to the problems involved in achieving higher levels of efficiency. This study is concerned with automatic text handling methods as required for an integrated system for mechanized information services in libraries. (Related documents are available as LI 003295 through LI 003300). (Author/NH)