Chapter

 1 IV   |           whether furnished with wings like birds, or membranes
 2 V    |         looked like it, with its wings and sails—motionless and
 3 VII  |       the son of Daedalus, whose wings, fixed together with wax,
 4 VII  | Bacqueville designed a system of wings, tried it over the Seine,
 5 VII  |        helicopter made of birds’ wings. in 1852 came Letur with
 6 VII  |        the air on four revolving wings. In 1853 came Béléguic and
 7 VII  |     Groof and his apparatus with wings worked by levers. The impetus
 8 VII  |     Dandrieux, Edison, some with wings or screws, others with inclined
 9 VII  |        the surface beaten by the wings in order to sustain it,
10 VII  |       although the motion of the wings becomes slower.~A flying
11 VII  |         during the return of the wings so as to let the air through
12 VII  |    ornithopter—striking like the wings of a bird—raised itself
13 VII  |          or arms, are in reality wings, but wings disposed as a
14 VII  |        are in reality wings, but wings disposed as a helix instead
15 X    |      increasing the speed of her wings, as a bird rising in its
16 XII  |         a bird shot through both wings, whose song ends with its
17 XII  |           and the sound of their wings almost acted as a lullaby.~
18 XV   |          them away beneath their wings.~Two hours after sunset
19 XVII |      increasing the speed of her wings the “Albatross” could clear
20 XIX  |          task. We will smash the wings of this bird of Robur’s!
21 XXII |          a bird beating with its wings the higher zones of space?
22 XXIII|      bird falls on the waves its wings keep it afloat. For several