=288.= A very good way of maintaining a sheaf catalogue for public use, especially in open access libraries, is to provide a sheaf or sheaves for each class of literature, and to enter the books in class order, using both sides of the slips for entries of small topics. These sheaves can be kept on the shelves with their classes. To this an author and title index can be provided in one alphabet, each author being kept on one slip or more, and both sides of the slips being used to ensure economy of space, and enable readers to find at once any particular book. Thus, on the front of the slip an author entry might appear as in Fig. 109, while on the back, or reverse side, the titles would be continued as on Fig. 110. +-----------------------------------------------------------------+ | | | | | Old | | Old court suburb, by Hunt U906 | | | | Old curiosity shop, by Dickens Fiction | | | | Old dominion, by Johnston Fiction | | | | Old Mortality, by Scott Fiction | | | | Old world in its new face, by Bellows Q037 | | | | | | [_and so on_] | | _OVER_ | | | +-----------------------------------------------------------------+ FIG. 111.--Sheaf Catalogue Title Slip (Section 288). The matter of strict alphabetical order in such index slips is of little consequence, owing to the concentration of entries which enables a consultor to note the contents with one sweep of the eye. Title entries can be done in similar fashion, the leading word being used as the index or catch-heading, as in Fig. 111. Here, again, strict alphabetical order need not be maintained, owing to the comparatively small compass in which the entries are displayed.