priceless collection of Civil War and other important tracts which immediately succeeded the donations already mentioned. As the growth of the Museum attracted further liberality ("To him that hath shall be given"), the collection naturally took an impress from the tastes of the private collectors by whom it was enriched. Hence abundant wealth in classics and the early literature of the Latin family of languages, accompanied by poverty in languages which the collectors did not understand, and subjects for which they did not care. When, thanks to Panizzi, the library at last obtained an adequate grant for purchases, the librarian's own intelligence became a much more important factor than formerly. To continue our metaphor, the contents of the recent strata would be found far more composite than of old, and more puzzling to the intellectual geologist. He would come upon various fragmentary formations, as it were, in which, trifling and remote effects of prodigious causes, he would discern vestiges of the great events of the time. Thus the growth of Greater Britain is legible in piles of colonial newspapers, and the Paris Commune is represented by a mass of caricatures and the scorched books of an Imperial Prince, literally saved out of the fire. It is the librarian's business at once to profit by this tendency to the accumulation of specialities, and to counteract it: to take advantage of every opportunity that may arise of enriching the library in definite directions, and at the same time of providing for the steady influx of miscellaneous literature, alike of the past and of the present as regards foreign nations: of English contemporary literature the Copyright Act, as above explained, takes sufficient care. It seems paradoxical, but it is true, that the Museum should be the home both of the books which every one expects to find in it, and of those which no one expects to find—of the literary freight which can ride the ocean, and of that which would perish without the haven of a public library. The catalogue must be the mirror of the library, and it is not the least of the many advantages of print that the public have now much better means than formerly of judging how the most difficult functions of librarianship have been understood and discharged at the Museum. In this connection mention may be made of a minor feature of the publication of the catalogue of considerable importance: the issue of extra copies of special articles as excerpts, sold separately at the lowest possible price. In this manner bibliographies, complete as far as the Museum collections are concerned, of Aristotle, Bacon, Bunyan, Byron, Dante, Goethe, and other writers of special importance have been issued. These should be of great value to students, and would probably have a large sale if their existence were more generally known. At present, like other Museum publications, they suffer from imperfect publicity. Another very valuable appendix to the catalogue of printed