The general indexes to periodical literature, such as Poole’s Index, The Readers’ Guide, Magazine Subject Index, and the Book Review Digest are shelved in cases 77 to 79 at the right of the entrance to the Periodical Room. Instruction in the use of these will be given to any applicant at the Reference Desk. Periodicals are not to be taken from the room. The rules governing their circulation and use will be found on page 30-36 of this handbook. =United States Government Publications.=--The library is a depository for the publications of the United States government. The bound volumes are catalogued and shelved in the stack with other books on the same subject. Unbound publications are recorded at the Reference Desk and may be consulted by applying there. Indexes to the United States documents, covering the period from the formation of the government to the present time, will be found in case 76, at the right of the entrance to the Periodical Room. =Maps.=--The map collection is located in the Map Room (318). The United States topographic and coast and geodetic survey maps, a selection of the United States hydrographic maps and of those of the British general staff, together with the maps of the principal countries of the world, the states of the United States, and the counties of California make up the greater part of the collection. A card catalogue of all maps in the Map Room has been compiled and serves as a geographic index to the collection. To use this catalogue or to see maps apply to the Reference Department. =University Publications.=--The library receives many publications of other universities. Catalogues, administrative reports, theses, department and student publications come unbound. These are recorded in the serial record and are filed alphabetically under the name of the university on the first floor of the stack. A collection of the latest catalogues of the larger American universities is kept at the Reference Desk. =New Books.=--New books added to the library before going to their regular places in the stack are displayed on shelves back of the Reference Desk. These books are placed there on Monday and are on exhibition for one week. Readers may reserve new books for home use by making out a “Home Use Slip” and filing it at the Reference Desk. Such books will be held at the Loan Desk for three days following the succeeding Monday. ACCESSIONS DEPARTMENT This department has charge of the purchasing of all books and periodicals required in any part of the University. It also looks after the building up of the General Library collection by exchange and gift and the binding of all General Library books and magazines.