Clarke, A. L. Manual of Practical Indexing, 1905. Grafton. New York State Library. Wheeler and Bascom, E. L. Indexing: Principles, Rules and Examples, 1905. Bulletin, 94, Library School, 19. Ed. 2; revised, 1913. Bulletin, 354, Library School, 33. Petherbridge, Mary. Technique of Indexing, 1904. Secretarial Bureau. Wheatley, H. B. How to Make an Index, 1902. Eliot Stock. ---- What is an Index: Notes on Indexes and Indexers, 1878. Index Society Publications. =320. Commercial and Library Indexing:= Byles, R. B. The Card Index System. Pitman. Kaiser, J. The Card System at the Office, 1908. Vacher. ---- Systematic Indexing, 1911. Pitman. Sayers and Stewart. The Card Catalogue, 1913. Grafton. =321. Filing:= Cope, E. A. Filing Systems: Their Principles and their Application to Modern Office Requirements. Pitman. Dana, J. C. American Library Economy [Various Sections, particularly v. i., pt. 5, sec. 3, Picture Collection; pt. 6, Art Department; v. ii., pt. 1, Colour and Position Filing; pt. 18, sec. 1, The Vertical File (revised ed. entitled the Information File); etc.], 1909. Woodstock, Vermont: Elm Tree Press. Jast, L. S. A Classification of Library Economy and Office Papers, 1907. Grafton. For articles, consult Index of Cannons under Indexing and Filing. DIVISION IX MAINTENANCE AND ROUTINE WORK CHAPTER XXI STATIONERY AND RECORDS =322. Forms and Blanks.=--Most of the important forms and blanks have already been described and figured under the different departments to which they refer, and this section will, therefore, only deal with a few general forms. NOTEPAPER of various kinds should be provided, some in the ordinary business size, some post quarto, and some foolscap folio. On each of these sizes the usual heading should be printed, with the arms and name of the town, librarian’s name, and any other information thought necessary. All ordinary correspondence can be carried on with the business size, but official and complimentary letters should be written on the larger sizes. ENVELOPES to suit the various sizes should also be procured, and it is a good plan to stock some large-sized manila envelopes for sending off large documents, reports, etc. These can be had in a variety of sizes, and some of them have clasps instead of gummed flaps, which make them very useful for temporary filing purposes. Gummed postal WRAPPERS should also be stocked in a fairly large size, and LABELS for sending off parcels, with the name of the library boldly printed on them, will be found very useful.