Bentley from a picture by Hudson in Trinity College, Cambridge, under the supervision of the Society for the Diffusion of Useful Knowlege / [graphic]Posselwhite, J. (James), 1798-1884, printmaker[between 1826 and 1873]eng"Portrait of Richard Bentley, half-length, slightly turned to the left, holding a book in one hand, dressed in an academic gown with bands at his neck and with a periwig on his head, after Hudson"--British Museum online catalogueTitle from caption below image.Date of publication based on active dates of publisher in association with Society for the Diffusion of Useful Knowlege.