The _Reference Catalogue of Current Literature_, a cumbrous and unwieldy tome, the last issue of which was out of print within a couple of months of its publication, consists of a large number of publishers' catalogues arranged in alphabetical order. Each work mentioned is indexed, and this has been accomplished so fully and accurately that almost any book to be bought new in the market makes its appearance here. Halkett & Laing's _Dictionary_ is, as the title implies, a record of the anonymous and pseudonymous literature of Great Britain. If an author wrote under an assumed name or anonymously, his real name will be found here, together with a short account of his publications. This work can hardly be said to be indispensable, but it is, notwithstanding, exceedingly useful, and well worth the three and a half guineas which will have to be expended upon it. Among other works which at one time were thought more of than they are now is Quaritch's _Catalogue of Books_, in one thick volume, 1880, and a supplement which is back-dated 1875-7. The chief value of this lay not only in the prices, which were, as in every other bookseller's catalogue, appended to the items, but in the extraordinary number of the entries, which cover the whole range of British and foreign literature. Even now the work is useful, but there is no doubt that it is gradually decreasing in importance, owing to the high-class works of reference which have lately made their appearance. As to values, _Book Prices Current_ gives them much more satisfactorily than any bookseller can pretend or afford to do, while most of the bibliographical notes and references are to be found in one or other of the works I have mentioned.