We have left ourselves no space for any observations upon the circumstances of libraries on the Continent, although there is ample evidence both of the activity of librarians and the public recognition of their functions in France, Germany, Italy, and Spain. Nor can we remark at length, as we gladly should have done, upon the tendency of the peculiar circumstances of the United States to develop a most valuable type of librarian, destined to exert more and more influence in Europe as libraries become more and more the possession of the people at large. Every advance in general knowledge tends to make them so, and the whole movement towards improvement in library administration—some only of whose features we have imperfectly striven to indicate—rests on the more or less conscious perception of librarians that the growth of human knowledge necessitates a strict classification with a view to facility of reference; that this important function devolves to a considerable extent upon them; and that, to qualify themselves for its discharge, they must begin by perfecting their own systems. NOTE.—The advocacy of printing in this essay may appear somewhat undecided, and the tone towards the catalogue of the early English books altogether unjustifiable. The former peculiarity is explained by the writer's uncertainty what turn the negotiations with the Treasury for the introduction of printing might take, and his dread of compromising the plans of Sir Edward Bond, who knew nothing of the article until it was in type, when he read it, and returned it without remark. (See also pp. 75, 76, of this volume.) The observations respecting the early English catalogue were dictated by no hostility towards that undertaking in the abstract, but by indignation at the largeness of the staff employed upon a non-essential, while the final revision of the catalogue, the indispensable preliminary to a complete printed catalogue, was so languidly prosecuted that it seemed in danger of coming to a standstill. So matters continued until 1882, when the decided interference of the Principal Librarian, and the adoption of a suggestion tendered by the present writer, brought the final revision to a speedy completion, and removed the principal objection to the English catalogue. FOOTNOTES: [32:1] _New Quarterly Review_, April 1879. [43:1] A revised edition of these rules, substantially the same in principle, but different in wording and arrangement, was prepared in the Department of Printed Books in 1895, and printed privately in the following year. [59:1] The line was drawn here to eliminate the Thomason tracts, a special catalogue of which would be really valuable: just as in "Erewhon," the date of operation of the retrospective enactment prohibiting machinery was fixed in the middle of the fifteenth century, in order to include a certain mangle.