In some libraries, a warning notice is posted up like this: "Readers finding a book injured or defaced, are required to report it at once to the librarian, otherwise they will be held responsible for the damage done." This rule, while its object is highly commendable, may lead in practice to injustice to some readers. So long as the reader uses the book inside of the library walls, he should of course report such defects as meet his eye in reading, whether missing pages, plates, or maps, or serious internal soiling, torn leaves, etc. But in the case of drawing out books for home reading, the rule might embarrass any reader, however well disposed, if too strictly construed. A reader finding any serious defect in a library volume used at home, should simply place a mark or slip in the proper place with the word "damaged," or "defective" written on it. Then, on returning the book to the library, his simple statement of finding it damaged or defective when he came to read it should be accepted by the librarian as exonerating him from blame for any damage. And this gives point to the importance of examining every book, at least by cursory inspection, before it is handed out for use. A volume can be run through quickly by a practiced hand, so as to show in a moment or two any leaves started or torn, or, usually, any other important injury. If any such is found, the volume should under no circumstances be given out, but at once subjected to repair or restoration. This degree of care will not only save the books of the library from rapid deterioration, but will also save the feelings of readers, who might be anxious lest they be unjustly charged with damaging while in their hands. The treatment of their imperfect books (which tend perpetually to accumulate) is very different in different libraries. Some libraries, where funds are ample enough to enable them to do it, condemn any book that has so much as a sentence torn out, and replace it on the shelves with a new copy. The imperfect volumes are sold for waste paper, or put into some sale of duplicate books, marked as imperfect, with note of the damage upon a slip inserted at the proper place in the book, and also in the catalogue, if sold at auction or in a printed list of duplicates offered by the library. This notice of what imperfection exists is necessary, so that no incautious purchaser may think that he is securing a perfect copy of the work. Other libraries not blessed with means to pursue this course, do as best they can afford, supplying what is deficient when possible without much cost of time or money, or else continuing the damaged book in use "with all its imperfections on its head."