Smithsonian Report, 1947. — Vesey-FitzGerald 



Plate 1 



The Wing Action of a Bat in More or Less Level Flight and Flying Toward the 



Camera 



Bats make hclwceii 15 and 'JO strokes of llic wiii^ a sccoikI, and Ilv at atioiit 10 miles an hour. (See also 



l'1.2, tig. 1.) 



