If you find other injury to a book returned, than the natural wear and tear that the library must assume, if a book, for example, is blotched with ink, or soiled with grease, or has been so far wet as to be badly stained in the leaves, or if it is found torn in any part on a hasty inspection, or if a plate or a map is missing, or the binding is violently broken (as sometimes happens) then the damage should be borne by the reader, and not by the library. This will sometimes require the purchase of a fresh copy of the book, which no fair-minded reader can object to pay, who is favored with the privileges of free enjoyment of the treasures of a public library. Indeed, it will be found in the majority of cases that honest readers themselves call attention to such injuries as books have accidentally received while in their possession, with voluntary offer to make good the damage. All unbound or paper covered volumes should be reserved from the shelves, and not supplied to readers until bound. This rule may be relaxed (as there is almost no rule without some valid exception) in the case of a popular new book, issued only in paper covers, if it is desired to give an opportunity of early perusal to readers frequenting the library. But such books should not be permitted to circulate, as they would soon be worn to pieces by handling. Only books dressed in a substantial covering are fit to be loaned out of any library. In preparing for the bindery any new books, or old ones to be re-bound or repaired, lists should be made of any convenient number set apart for the purpose, prompt return should be required, and all should be checked off on the list when returned. No shelf in a well-regulated library should be unprovided with book-supports, in order to prevent the volumes from sagging and straining by falling against one another, in a long row of books. Numerous different devices are in the market for this purpose, from the solid brick to the light sheet-iron support; but it is important to protect the end of every row from strain on the bindings, and the cost of book supports is indefinitely less than that of the re-binding entailed by neglecting to use them. Some libraries of circulation make it a rule to cover all their books with paper or thin muslin covers, before they are placed on the shelves for use. This method has its advantages and its drawbacks. It doubtless protects the bindings from soiling, and where books circulate widely and long, no one who has seen how foul with dirt they become, can doubt the expediency of at least trying the experiment of clean covers. They should be of the firmest thin but tough Manila paper, and it is claimed that twenty renewals of clean paper covers actually cost less than one re-binding. On the other hand, it is not to be denied that books thus covered look shabby, monotonous, and uninteresting. In the library used for reference and reading only, without circulation, covers are quite out of place.