Although cards are filed in the catalogue alphabetically by author, subject, and sometimes title, the large number of entries makes it necessary to have a filing system. A copy of Princeton University Library Filing Rules is kept on the counter next to the Public Catalogue. Some of these rules are given below.
Arrangement is word by word, alphabetizing letter by letter to the end of each word.
New England New York Newark Newman Order of entries under same word. Also, there may be several alphabets for some names and words. Department of State. Special Committee on Farm Tenancy. Main cards precede subject cards.