of paste, and being in a chronic state of hunger, they watc opportunities of getting at any library receptacle of it They will gnaw any fresh binding, whether of cloth, board or leather, to get at the coveted food. They will also gnav some books, and even pamphlets, without any apparen temptation of a succulent nature. A good library cat o a series of mouse traps, skilfully baited, may rid you of thi evil.

The injury that comes to library books from insufficient care in protecting them on the shelves is great and incal culable. There are to be seen in every library, volumes all twisted out of shape by the sagging or leaning, to which the end-book is subjected, and which is often shared by all its neighbors on the shelf. The inevitable result is that the book is not only spoiled in its good looks, but (which is vastly more important) it is injured in its binding, which is strained and weakened just in proportion to the length of time in which it is subjected to such risks. The plain remedy is to take care that every volume is supported upright upon the shelf, in some way. When the shelf is full, the books will support one another. But when volumes are withdrawn, or when a shelf is only partly filled with books, the unsupported volumes tumble by force of gravitation, and those next them sag and lean, or fall like a row of bricks, pushing one another over. No shelf of books can safely be left in this condition. Some one of the numerous book-supports that have been contrived should be always ready, to hold up the volumes which are liable to lean and fall.

We come now to the active human enemies of books, and these are unhappily found among some of the readers who frequent our libraries. These abuses are manifold and far-reaching. Most of them are committed through ignorance, and can be corrected by the courteous but firm in

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terposition of the librarian, instructing the delinquent how to treat a book in hand. Others are wilful and unpardonable offences against property rights and public morals, even if not made penal offences by law. One of these is book mutilation, very widely practiced, but rarely detected until the mischief is done, and the culprit gone. I have found whole pages torn out of translations, in the volumes of Bohn's Classical Library, doubtless by students wanting the translated text as a "crib" in their study of the original tongue. Some readers will watch their opportunity, and mutilate a book by cutting out plates or a map, to please their fancy, or perhaps to make up a defective copy of the same work. Those consulting bound files of newspapers will ruthlessly despoil them by cutting out articles or correspondence, or advertisements, and carrying off the stolen extracts, to save themselves the trouble of copying. Others, bolder still, if not more unscrupulous, will deliberately carry off a library book under a coat, or in a pocket, perhaps signing a false name to a reader's ticket to hide the theft, or escape detection. Against these scandalous practices, there is no absolute safeguard in any library. Even where a police watch is kept, thefts are perpetrated, and in most libraries where no watchman is employed, the librarian and his assistants are commonly far too busy to exercise close scrutiny of all readers. As one safeguard, no rare or specially costly book should be entrusted to a reader except under the immediate eye of the librarian or assistant. Ordinary books can be replaced if carried off, and by watching the rarities, risk of theft can be reduced to a minimum.

When newspapers are given out to readers, it should always be in a part of the library where those using them are conscious of a surveillance exercised over their movements. The penalty of neglecting this may at any time be the mu

tilation of an important file, and it must be remembere that such damage, once done, cannot be repaired. Yo can replace a mutilated book usually by buying a new one but a newspaper can almost never be replaced. Even in the city of Boston, the librarian of the Athenaeum library records the disgraceful fact, that "the temptation to avoid the trouble of copying, by cutting out articles from newspapers is too strong for the honesty of a considerable part of the public." And it was recorded by the custodian of a public library in Albany that all the plates were missing from certain books, that the poetry and best illustrations were cut from magazines before they had lain on the tables a week, and strange to say, that many of these depredations were committed by women.

It is a difficult problem how to prevent such outrages to decency, and such irreparable depredations on the books in our libraries as destroy, in great part, their value. A posted notice, reminding readers that mutilation of books or periodicals is a penal offence, will warn off many, if not all, from such acts of vandalism. If there is no law punishing the offence, agitate until you get one. Expose through the press such thefts and mutilations as are discovered. Interest readers whom you know, to be watchful of those you do not know, and to quietly report any observed violation of rules. When a culprit is detected, push the case to prompt legal hearing, and let the penalty of the law be enforced. Let it be known that the public property in books is too sacred a right to be violated with impunity. Inculcate by every means and on every opportunity the sentiment that readers who freely benefit by the books supplied should themselves feel personal concern in their cleanliness and preservation, and that the interest of the library is really the interest of all.

A daily abuse practiced by many readers in libraries,

though without wrongful intent, is the piling of one book on top of another while open. This is inexcusable illtreatment, for it subjects the open book thus burdened, to injury, besides probably soiling its pages with dust. Especially harmful is such careless treatment of large volumes of newspapers or illustrated works.

Careless use of ink is the cause of much injury to library books. As a rule (to which the very fewest exceptions. should be made) pencils only should be allowed to readers, who must forego the use of ink, with the inevitable risk of dropping it upon the book to its irreparable injury. The use of ink in fountain pens is less objectionable. Tracing of maps or plates should not be allowed, unless with a soft pencil. Under no circumstances should tracing with a pen or other hard instrument be permitted to any reader. Failure to enforce this rule may result in ruin of valuable engravings or maps.

There is one class of books which demand special and watchful care at the hands of the librarian. These are the fine illustrated works, mostly in large folio, which include the engravings of the art galleries of Europe, and many other specially rare or costly publications. These should be carefully shelved in cases where they can lie on their sides, not placed upright, as in some collections, to lean over, and, sooner or later to break their backs, and necessitate rebinding. When supplied to readers, there should not be more than one volume at a time given out, to avoid the risk, always threatening, of careless handling or of opening one volume on top of another that is open. There should also be a printed notice or label affixed to the side cover of every illustrated work reading, "Never touch an engraving," or an equivalent warning. This will go far, by its plain reminder, to prevent soiling the pages by the fingers, a practice which rapidly deteriorates fine books,

and if long continued, renders them unfit to be exhibit to clean-handed readers.

All plates should be stamped at some portion of the surface (it is often done on the back) with the embossin stamp of the library, as a means of identification if al stracted from the volume to which they belong.

Such books should, moreover, be consulted on a larg table, or better an adjustable stand (to avoid frequent lif ing or shifting of the position of the volume when inspect ing the plates) and always under the eye of the libraria or an assistant not far removed. These precautions wi insure far more careful treatment, and will result in hand ing down to a new generation of readers many a rare an precious volume, which would otherwise be destroyed o irretrievably injured in a very few years. The librar treasures which cost so much to bring together shoul never be permitted to suffer from want of care to preserv them.

All writing upon the margins of books should be prohib ited-other than simple pencil corrections of the text, a to an erroneous date, name, etc., which corrections of er rors should not only be permitted, but welcomed, upon due verification. The marking of passages for copying or citation should be tolerated only upon the rigid condition that every user of the book rubs out his own pencil marks before returning it. I have seen lawyers and others thoughtless enough of right and wrong to mark long passages in pen and ink in books belonging to public libraries. This is a practice to be sternly repressed, even at the cost of denying further library privileges to the offender.

Turning down leaves in a book to keep the place is one of the easily besetting sins of too many readers. Those who thus dogs-ear a volume should be taught that the vile practice weakens and wears out the leaves thus folded down,