00909nam0-22003131i-450-99000200659040332120040510092532.0000200659FED01000200659(Aleph)000200659FED0100020065920030910d1929----km-y0itay50------baengGBy---a---001yyThis bondagea study of the migration of birds, insects an aircraft with some reflections on evolution an relativityBernard AcworthLondonJohn Murray1929229 p.19 cmEvoluzioneTeorieAdattamentiMigrazioni575.01Acworth,Bernard84817ITUNINARICAUNIMARCBK99000200659040332161 III A.7/26885DAGENDAGENThis bondage402828UNINA