or else from a larger regional library or a clearing-house at the centre, obviously a service equal to the pooled resources of the whole system would be provided without the present waste on overlapping. Central organization exists in the big provincial cities; that is the reason for their superiority, and they are superior in a degree far beyond that of mere size. It does not exist in London; that is why serious readers must have recourse to the British Museum or the big special libraries, to satisfy their requirements; or if, like the great majority, they can rarely do this, they must go without. London is the most glaring illustration of the vices due to mere parochial methods; it suffers, not so much because its library resources are limited, as because they are not mobilized. For certain purposes, it has already been noted, both London and provincial libraries acknowledge the economic value of some centralization. Thus every municipal library has given up buying books in Braille type for the blind, and relies for this branch of its service upon the National Library at Westminster. A great many subscribe to the Central Library for Students, and draw upon that for books required by specialist readers. A large number help to provide the funds for the great Subject-Index to Periodicals, which makes the contents of reviews, magazines, technical and scientific journals, filed in their reference departments, available for instant use. This may not seem much compared with the results of joint effort or of State supervision in America, where they have co-operative cataloguing, co-operative publication of bibliographies and aids for readers, and elaborate facilities for professional training; but it is a beginning. The Adult Education Committee can think of no way to endow the industries of the country with an adequate series of technical libraries except by centralization. Although many librarians, represented by the Library Association, do not approve of the particular scheme put forward, they are at one with the Committee in admitting that co-ordination of the separate libraries and the establishment of a central supply is the only way to solve this problem.