=New York Public.= Newark system. Book card has author's surname, title of book, class number and accession number. Variously colored book cards are used to indicate various classes. Assistant makes hurried examination of book to be issued and copies borrower's card number on book card and stamps date with dating pencil on reader's card, book pocket and book card--the latter to be done at leisure if there is a rush. Puts borrower's card in pocket and gives books to reader. Book card is dropped in proper slot in desk (ten slots indicating the ten classes). Book cards filed under date of issue by class author and accession number. Book cards for foreign books are arranged alphabetically after book cards in English. When book is discharged, assistant checks off book comparing date of card with that of book, examines book for damage and then cancels date on reader's card, restoring card to reader. (Note. It hardly seems that this checking off before cancelling date on reader's card can be done except in a very slack hour, and must cause annoying delay to reader). Books are then placed on truck to right of assistant, later revised and shelved. System has many exceptions, one of which is to write reader's card number on dating slip as well as book card. Others are the writing of Special or Sp. on book card, opposite card number to indicate the privilege of extended time to special cardholder, as well as on dating slip. In this case, call number or accession number is written on card (presumably reader's card) and the use of branch initial on reader's card to show card issued from a branch other than that from which book is borrowed. This library uses a reader's receipt file for books returned without card--a slip giving name, address, card number, class number, date of issue and return. This system with variations is also in use in the St. Louis public library (called the "write-ups") and also in the Pratt Institute free library and supposedly many others. =Pratt Institute Free Library.= Newark System. Uses different ink pads for fiction and non-fiction, and dating pencils. Puts book cards into slots in desk; fiction, non-fiction and teachers. Stamps dates first and then writes card number. Uses different ink pad for discharging. Charging and discharging (including checking off done at same desk) done by same assistant except in a rush hour. Checking off however is done at assistant's leisure--that is, the reader's card is stamped off before book card is found. Book cards are filed by class under date. Keeps a separate renewal file.