William Ruschenberger FollowSubscribeBooks by William RuschenbergerElements of BotanyWilliam Ruschenberger(1843)Elements of EntomologyWilliam Ruschenberger(1845)Elements of OrnithologyWilliam Ruschenberger(1842)Elements of MammalogyWilliam Ruschenberger(1845)Elements of Anatomy and PhysiologyWilliam Ruschenberger(1852)Elements of ConchologyWilliam Ruschenberger(1845)Elements of Herpetology and IchthyologyWilliam Ruschenberger(1844)