Connected with the subject of indexes is that of dictionary catalogues, in which the alphabetical and the subject catalogues are found in a single list. I retain the opinion I have always held, that this plan may answer where the library and the catalogue are not extensive, but that where they are, confusion results; the wood cannot be seen for the trees. I therefore recommend the librarian of even a small library, in planning his catalogue, as well as everything else, to make sure whether his library may not be destined to become a great one. Half the difficulties under which great libraries labour arise from the failure to take from the first a sufficiently generous view of the possibilities and prospects of the institution. With this view of dictionary catalogues, it is not likely that they will be adopted at the British Museum, but I have already explained more than once the facilities which the Museum possesses for forming an unequalled series of subject catalogues by simply, when the great general catalogue has been printed, cutting up copies printed on one side only, and arranging them in a number of indexes. There is no doubt that the Museum can amply provide for its own needs in this manner, and thus remove the reproach under which it has always laboured, and still labours, of having no subject catalogue except Mr. Fortescue's. The question is whether the indexes thus created are to become available for the service of libraries and students all over the world by being published and circulated. The solution of this question rests with the Government, and I have alluded to it here principally in the hope of eliciting that expression of public opinion without which Government is hardly likely to act. The question will probably become an actual one towards the end of the present century.