Watercolor, graphite, pastel, black ink and gouache on paper
Overall: 19 x 12 in. ( 48.3 x 30.5 cm )
Inscribed at the upper right in graphite: “If we look at the construction / of the wings of Bats, along with / their internal Structure, It will / appear as if probable that should / our own species ever attempt to / pass[?] through[?] the air with wings / they will have to be constructed / on the principle of belonging to / these most curious animals”; at the lower right: "Vespertilio noctivagans, Le Conte. -- / Caught alive on Minies Land, Island of N.Y. / Dec.r 7th 1841 -- drawn at N. York / from life Dec. 18, 1841--/ J.J.A"
Two views of a bat, from the rear and hanging, drawn from a live specimen captured at Minnie's Land, Audubon's New York home. In this drawing, Audubon concentrated on the bat's wings and added inscribed comments on the aerodynamic properties of the bat's physical structure. Formerly S-20.
Due to ongoing research, information about this object is subject to change.