THE eleventh and twelfth reports of the Brotherton Collection Committee, University of Leeds, covering the sessions 1945–46 and 1946–47, respectively, estimate the contents of the Collection on June 30, 1947, as 22,700 books, 15,413 pamphlets, 473 manuscripts, 4,105 deeds, 31,158 letters and 25 maps ; the increase on June 30, 1946, being 61 books, 65 pamphlets and 32 letters. Undergraduates continued to use the Collection for special studies, particularly in English literature, and the return to more normal conditions was shown by an increasing number of inquiries from abroad. Many of the visits to the Collection during 1945–46 were specially arranged in connexion with an exhibition of the collection of English county atlases and road maps presented to the University by Dr. Harold Whitaker. The practice of holding exhibitions of the Collection‘s treasures is to be revived, and during 1946–47 an exhibition of bindings was arranged in connexion with the Leeds Conference of the International Society of Leather Trades Chemists. The re-cataloguing of books in the English literature section continued and 2,601 slips were added to the Supplementary Catalogue in 1945–46 and 880 in 1946–47. Ten books and pamphlets were presented in 1945–46 and 101 purchased, the corresponding figures in 1946–47 being 74 and 52 as well as 52 autograph letters presented.