[Letter] 1852 Apr 16, 6 Regents Park Terrace [to] E. W. Brayley / William B. Carpenter. [2p. on 1 leaf, holograph signed. He writes to send his thanks to the Committee of the Russell Institution for its appreciation of 'my Course of Lectures recently concluded'. Brayley, topographer and archaeologist, was librarian and secretary of the Russell Institution from 1825 to 1854]