tag or label. They can be had in several sizes; round ones are best.
Paste the label where it will mar the book least, as near the middle
as possible. It is well to put all labels at the same height from
the bottom of the back, so far as this can be done without covering
essential parts of the lettering. Four inches is a good height for the
lower edge of all labels. Labels stick better if the place where they
are to be pasted is moistened with a solution of ammonia and water, to
remove varnish or grease. If this is done the mucilage or gum on the
labels when purchased will be found usually to stick well. After the
call-number is written, varnish the label with a thin solution of
shellac in alcohol. Labels put on in this way will keep clean, remain
legible, and rarely come off.

If a charging system using a pocket is adopted, no book-plate is
needed, if the pocket, that is, is pasted on the inside of the front
cover and has the name of the library on it.

When books are classified the call-number is written with hard pencil
on a certain page, the same page in all books; a common place is the
first right hand page after the title-page, and near the inner margin.

This call-number should be written with ink on the pocket and book
slip, which is kept in the pocket, or on the book-plate. It is
advisable also to write the call-number in ink on some definite page
bearing the library's stamp.

If a book-plate is adopted let it be small and simple. Have a special
plate for gifts, with space on it for writing the name of the giver.

Books wear better if they are carefully opened in a number of places