"There must be something in the wind," remarked Dick.
As wind is known to be composed of two distinct
gases, Crusoe felt perfectly safe in replying "Yes" with
his tail. Immediately after he added, "Hallo! did you
hear that?" with his ears.
Dick did hear it, and sprang hastily to his feet, as
a sound like, yet unlike, distant thunder came faintly
down upon the breeze. In a few seconds the sound
increased to a roar in which was mingled the wild cries
of men. Neither Dick nor Crusoe moved, for the