BUTABU - ADOBE ARCHITECTURE OF WEST AFRICA An exhibition of photographs by James Morris. Many of the most noble buildings in Africa are made of mud. These images show the creative ways in which local architects shape this material into works of art. Brunei Gallery, School of Oriental and African Studies, Thornhaugh Street, Russell Square, WC1, (020 7898 4046), Mon-Fri 10.30am-5pm, free. Until 19 September.