Chapter 2

THE FEET OF THE FLY. (March 11, 1842)

[2.1] It will not have escaped your notice, and you will have seen quite often how the fly, with its six little feet, patters forth so agilely on a highly polished vertical surface as well as on a horizontal table or plane.

[2.2] But how is this possible for this animal, since its feet, although each one terminates with two very small pointed claws, are still smooth on the outside?