In no case, should the bound volumes of magazines, reviews, and journals of whatever kind be allowed to leave the library. This is a rule which should be enforced for the common benefit of all the readers, since to lend to one reader any periodical or work of general reference is to deprive all the rest of its use just so long as it is out of the library. This has become all the more important since the publication of Poole's Indexes to periodical literature has put the whole reading community on the quest for information to be found only (in condensed form, or in the latest treatment) in the volumes of the periodical press. And it is really no hardship to any quick, intelligent reader, to require that these valuable serials should be used within the library only. An article is not like a book;--a long and perhaps serious study, requiring many hours or days to master it. The magazine or review article, whatever other virtues it may lack, has the supreme merit of brevity. The only valid exception which will justify loaning the serial volumes of periodicals outside the library, is when there are duplicate sets of any of them. Some large libraries having a wide popular circulation are able to buy two or more sets of the magazines most in demand, and so to lend one out, while another is kept constantly in for use and reference. And even a library of small means might secure for its shelves duplicate sets of many periodicals, by simply making known that it would be glad to receive from any families or other owners, all the numbers of their magazines, etc., which they no longer need for use. This would bring in, in any large town or city, a copious supply of periodicals which house-keepers, tired of keeping, storing and dusting such unsightly property, would be glad to bestow where they would do the most good. Whatever periodicals are taken, it is essential to watch over their completeness by keeping a faithfully revised check-list. This should be ruled to furnish blank spaces for each issue of all serials taken, whether quarterly, monthly, weekly, or daily, and no week should elapse without complete scrutiny of the list, and ordering all missing numbers from the publishers. Mail failures are common, and unceasing vigilance is the price that must be paid for completeness. The same check-list, by other spaces, should show the time of expiration of subscriptions, and the price paid per year. And where a large number of periodicals are received, covering many parts of the country, they should be listed, not only by an alphabet of titles, but by another alphabet of places where published, as well.