Animal Locomotion - Or Walking, Swimming, and Flying, With a Dissertation on Aëronautics #226248

That artificial flight is a possible thing is proved beyond doubt — lei, by the fact that flight is a natural movement; and 2d, because the natural movements Of walking and swim ming have already been successfully imitated. The very Obvious bearing which natural movements have upon artificial ones, and the relation which exists between organic and inorganic movements, invest our subject with a peculiar interest.