=314. Indexes.=--Probably no work demands the use of indexes so imperatively as library work. The catalogue is merely an extension of an index, and the borrowers’ register (which is dealt with in Section 366, etc.) is in its most convenient form merely an index. We have already dealt with the indexes for correspondence, lantern slides, etc., and it will be more convenient to deal with the indexes to prints and maps in Sections 438, etc. Here we can mention only one or two administrative indexes, with the general remark that the methods described are not to be regarded as stereotyped, but are merely suggestions which librarians may adapt to their special needs. THE CARD DIARY.--A useful little card index is one which may go on a desk, and is guided with the days of the week, and has such other guides as “This Week,” “To-day,” “Next Week,” “Miscellaneous matters,” etc., which serves as a reminder to its user. Behind the appropriate guide are filed cards referring to the matters which are to be dealt with at the time indicated. These card-diaries are commonly known as “ticklers,” and can be a most effective aid to methodical administration. STATIONERY AND SUPPLIES INDEX.--It is an important matter, especially in large libraries, to be able to put hands immediately upon any article of stationery or other supplies. The old, haphazard plan of thrusting supplies in cupboards with wooden doors, and trusting to luck or memory for finding them again, is too leisurely a method for the busy modern librarian. All storage cupboards or presses should have glazed doors. This simple precaution has the effect of inducing tidiness on the part of the staff, and the prospect of slovenly arrangement is reduced to a minimum. The next process is to decide upon a method of indexing which will offer the greatest facilities for rapidly finding any given article. In the _Library World_ for July, 1899, Mr Jast describes a graphic method of achieving this end. He provides a series of cards of uniform size, one or more for each article indexed, according to the need for indexing them more than once in the alphabet. On these cards he draws a rough diagrammatic elevation of the cupboard or other place of storage, as illustrated (Fig. 120).