Pamphlets, from their peculiar style of publication, and the difficulty of preserving them, tend to disappear more quickly than any class of publications except newspapers, and broad-sides, and hand-bills. They are far less likely to be preserved in the hands of private holders than even reviews and magazines. It is the common experience of librarians that a pamphlet is far more difficult to procure than a book. Multitudes of pamphlets are annually lost to the world, from the want of any preserving hand to gather them and deposit them permanently in some library. So much the more important is it that the custodians of all our public libraries should form as complete collections as possible of all pamphlets, at least, that appear in their own city or neighborhood. How to do this is a problem not unattended with difficulty. Pamphlets are rarely furnished for sale in the same manner as books, and when they are, book-sellers treat them with such indignity that they are commonly thrust aside as waste paper, almost as soon as they have appeared from the press. If all the writers of pamphlets would take pains to present them to the public libraries of the country, and especially to those in their own neighborhood, they would at once enrich these collections, and provide for the perpetuity of their own thought. A vigilant librarian should invite and collect from private libraries all the pamphlets which their owners will part with. It would also be a wise practice to engage the printing-offices where these fugitive leaves of literature are put in type, to lay aside one copy of each for the library making the collection. Our local libraries should each and all make it a settled object to preserve not only full sets of the reports of all societies, corporations, charity organizations, churches, railroads, etc., in their own neighborhood, but all catalogues of educational institutions, all sermons or memorial addresses, and in short, every fugitive publication which helps to a knowledge of the people or the region in which the library is situated.