enterprise must be kept distinct. Another question of cataloguing which occupied the attention of the Conference of 1877 was the important one of subject catalogues. In this I am able to announce the most satisfactory progress. In the face of the mass of information continually pouring in, the world has become alive to the importance of condensing, distributing, and rendering generally available the information which it possesses already. Three very remarkable achievements of this kind may be noticed. The first is Poole's Index to Periodicals, with its continuation, a work so invaluable that we now wonder how we could have existed without it, but so laborious that we could hardly have hoped to see it exist at all, especially considering that it is an achievement of co-operative cataloguing. In illustration of the want it supplies, I may mention that it has been found necessary at the British Museum to reproduce the preliminary tables by photography in a number of copies, the originals having been worn to pieces. The next work I shall mention is the subject index to the modern books acquired by the British Museum since 1880—two bulky volumes, prepared in non-official time, with the greatest zeal and devotion, by the superintendent of the Reading Room, Mr. Fortescue, and continued by him to the present time. They are simply invaluable, and it is only to be regretted that they have been issued at too high a price to be generally available to the public. This is not the case with the third publication which I have to mention—the classed catalogue issued by Mr. Swan Sonnenschein, the utility of which is very generally known. A cognate feature of the times is the great comparative attention now paid to indexing, which is sometimes carried to lengths almost ludicrous. The author of a work of information who does not give an index is sure to be called over the coals, and with reason, for how else is the reviewer to pick out the plums unless he actually reads the book? I am not sure that this extreme facilitation of knowledge is in all respects a good thing, but it is at present a necessary thing, and correlated with that prevalence of abridged histories and biographies which it is easy to criticise, but which has at least two good points—the evidence it affords of the existence of a healthy appetite for information among a large reading class, and the fact that information is thus diffused among many to whom it would have been inaccessible under other circumstances.