varies with the
locality, the work, the skill, or the competition involved. But it may be
said in general that the average cost of book-page facsimiles by
photographic process need not exceed one dollar a page.

An entire edition of the Encyclopaedia Britannica has been printed from
plates made in replica from photographs of the original text of the
Edinburgh edition. The reproduction in this case can hardly be commended,
as it is trying to the eyes to read, when compared with the original,
presenting a somewhat blurred and irregular aspect to the eyes.

It is very difficult to lay down rules which shall be effective in
checking the abuse of books which compels exercise of the means of
restoration. Writing upon margins (already referred to) may sometimes be
checked by putting a printed slip in every library book bearing the
warning--"Never write in a library book." To this may be added--"Never
turn down leaves," an equally important injunction. Indeed, a whole list
of "Dont's" might be inserted, but for the chance that too many warnings
might operate to warn off a reader from absorbing any of them. Thus--

"Don't soil any book
Don't write on margins
Don't turn down leaves
Don't lay a book on its face open
Don't wet fingers to turn leaves
Don't fail to use the book-mark
Don't read with unclean hands."

As a loose slip is liable to fall out, some such reminder should be
pasted into the fly-leaf of every book, next the book-plate.

A self-respecting reader will generally heed such hints, which a moment's
reflection will teach him are meant to preserve the library book clean
and presentable for his own use, as well as for that of others. But there
will always be some rude, boorish people who will persist in their brutal
and destructive treatment of books, in the face of whatever warnings. How
to deal with such unwelcome persons is an ever-present problem with the
librarian. If sustained by the other library authorities, a really
effectual remedy is to deny the further use of the library to any
offender clearly proven to have subjected library books to damage while
in his hands. Some librarians go so far as to post the names of such
offenders in the library hall, stating that they are denied the
privileges of the library by the authorities, for mutilating books.

In any case, great care must be taken to have the clearest proof, before
proceeding to fasten the offense upon a particular indi