A monograph on the anatidae, or duck tribe /.London :Longman, Orme, Brown, Green, & Longman ... and Eddowes, Shrewsbury,1838..biodiversitylibrary.org/page/36002182
A monograph of the Bucerotid, or family of the hornbills..[London]Published for the subscribers by the author [printed by Taylor and Francis]1882..biodiversitylibrary.org/page/38534667