This is the museum ideal: but to realize it conditions are needed which are not always, or indeed often, attainable. To attract and interest the public, not a mass of material is needed, as by the student, but a relatively small number of objects good of their kind, or intrinsically interesting, well displayed and clearly ex plained. The ideal museum would have one set of galleries for the general public, in which this method would be applied, and another set of rooms for the student, in which objects would be gathered in bulk, with all facilities for their examination. Un fortunately few museums, and none of the older ones, have been built on this principle. The original idea was to show everything; and now the galleries are overcrowded, and there is no adequate accommodation for study-series. The need, however, is now rec ognized, and there is no doubt that efforts will be made to supply it (see MUSEUM ARCHITECTURE).
The educational service of a museum is, or should be, not merely passive but active. It is not enough to build and stock a museum, and to leave the public to find out its value for them selves. That was the older policy, or lack of policy. A live museum now endeavours actively to attract the public and to interest it. The principal means are by labels, by guide-books, by photographs (including the popular picture postcards), by special exhibitions, by articles in the press, and by lectures in the galleries. Peripatetic lectures by educated guide-lecturers (as distinct from mercenary ciceroni) were, it is believed, first tried in the United States in 19°7 and first systematized in London in 1911. They are now a recognized and popular feature in all the greater museums. Still more recently the use of museums as a regular part of the education of children has been developed, con spicuously so in America, where it has been found a great success.
BIILIoGRApHY.—The only general history of museums is Museums, their history and their use, by David Murray (Glasgow, 1904), in three volumes, of which two are occupied by a bibliography, including catalogues and other works relating to particular museums and special collections. Much detailed information about the national museums, both in Great Britain and in other countries, is contained in the volume of evidence and appendices accompanying the Interim Report of the Royal Commission on National Museums and Galleries (1928) ; and Sir H. Miers' Report on the Public Museums of the British Isles (1928), prepared for the Carnegie Trustees, gives the fullest survey of the history and present condition of the municipal and other non-national museums, with a tabulated list of them. E. E. Lowe's Report on American Museum Work, for the same Trustees, gives a more summary statement of the position in America. The publications of the American Association of Museums, the Museums Journal of the Museums Association of Great Britain, and the Museumskunde of Berlin contain much information on both theory and practice. Among other books that may be mentioned are: Sir W. Flower, Essays on Museums (1898) ; M. T. Jackson, The Museum (1917) ; L. V. Coleman, A Manual for Small Museums (1927) ; C. R. Richards, Industrial Art and the Museum (1927). Information with regard to particular museums must be sought in their own catalogues and other publications. A series of separate histories of British and American Museums includes The British Museum, by H. C. Shelley Ow I), The Boston Museum of Fine Arts, by J. de W. Addison (revised ed., the Metropolitan Museum of New York by D. L. Preyer (19o9), and The Art Treasures of Washington, by H. W. Henderson An investigation into the principles and methods of exhibition in art museums is now being conducted by the Carnegie Corporation of New York. (F. G. K.)