THE Summary of Progress for 1923 of the Geological Survey of Great Britain and the Museum of Practical Geology1 opens with the report of the Advisory Board. In this report we are reminded that in 1912 a Departmental Committee on the Science Museum and Geological Museum recommended the removal of the latter to a new building to be erected at South Kensington. The matter, shelved during the War, was not reopened until, in April 1923, the roof of the Geological Museum was found to be unsafe. It became necessary to close the Museum to the public, and later on to debar inquirers from access to the Survey offices, the Library, and the Map room. We now learn from the report that, on careful consideration of the position, the Government decided after the close of 1923 to erect a new museum and offices for the Geological Survey on the site recommended by the committee. Many will feel regret that a building and a situation with so many associations should be abandoned, but the advantages of the new site are manifest. The two great geological collections, one biologically arranged and illustrating stages in the evolution of life upon the globe, the other showing the forms of life which characterised each successive period in the history of the globe, will be side by side. It is to be expected also that adequate space will be provided not only for offices and workrooms, but also for the exhibition of minerals, rocks, and fossils now stored in drawers or overcrowded in exhibition cases. An overcrowded case produces a mere sense of bewilderment, and to say that some of the cases in the Jermyn Street Museum contain twice as many specimens as they can properly exhibit, is no over-statement.