=St. Louis Mercantile Library.= Browne system, with separate reader's identification card, seldom used. Uses blue reader's pocket for fiction, salmon color for non-fiction, and manilla pockets for pay duplicates. Book card corresponds in color, except in case of regular books issued as extras. Book card has Cutter class number, author and title. Assistant stamps date due on dating slip and book card which is placed in reader's pocket. Pockets are put temporarily in tray near issue desk and later filed by class, under date due. Books are discharged by charging assistant at charging desk, by taking book card from pocket and slipping it into book. Empty reader's pockets are constantly being filed in regular reader's file. =St. Louis Public Library.= Newark system. Different colored ink-pads for seven day and fourteen day books and for discharging. Reader's number first written on bookcard, then book card, dating slip and reader's card stamped. Reading-room books charged on slips filled out by reader. Two books generally are issued on one card but "Additional Books" stamped on reader's card entitles cardholder to a greater number of volumes, of non-fiction, usually six. This privilege is granted to educators, social workers and others engaged in serious study, at the discretion of the head of the circulation department. Discharging is done at a separate desk in the usual way, receipts being filed for books returned without reader's card. Books are placed on a truck and checked off by a special assistant. =Society Library= =The Medical Society of the County of Kings=--Uses a borrower's receipt, giving author, title, accession number and borrower's signature. These receipts are filed by borrower's name. When book is returned, it is discharged by stamping date of return on receipt and placing in file of cancelled loans. The libraries using colored book cards to denote the classes are: East Orange Public Library. New York Public Library. St. Louis Mercantile Library--colors simply indicating fiction or non-fiction. Those using colored book cards for their double file (borrower's and book) are: Boston Athenaeum. Oberlin College. At the time of book's issue bookcards are dropped into a drawer through slots designating classes of the books issued by the following libraries: Carnegie Library of Atlanta. New York Public Library. Pratt Institute Free Library--designates fiction, non-fiction and teachers. Libraries using temporary bookcards, filled out at time of book's issue by borrower or assistant: Iowa State. Tulane University. Virginia State. Wesleyan University. Libraries using a borrower's record for privileged classes (professors, etc.) and a time record for students: Kansas University. Oberlin University. Syracuse University. Wesleyan University.