1 836] The borrower's card he places in the book pocket, the book-card he retains as a record of the loan, and the borrower takes the book away.
The book-card, with all others representing the books issued on the same day, he places in a tray behind a card bearing the date of the day of issue.

All the book-cards representing books issued on a certain day are arranged in the order of their call-numbers.
[Illustration: Tray for book-cards.] Under this system the borrower can tell, by looking at his card, on what date the book he has was taken from the library.

If he wishes to renew it without taking it back to the library, he can do so by a letter stating that he took on a certain day a book bearing a certain number, and wishes it renewed.
The librarian can tell, from the book-cards, what books are in circulation, and how many of each class were lent on a certain day.
[Illustration: No.1.Postal notice.

(Reduced.) City Library Association Springfield, Mass.Feb.14, 1899.
The book noted below is now in the library and will be reserved for you until 9 P.M., Feb.

15.
_Please present this notice and your library card._ A charge of two cents is made for this notice.
JOHN COTTON DANA, _Librarian_.
Per.