as the dog lifted his head and laid his chin on Dick's
arm, showed that he had been listening to every word
that was spoken. We cannot say whether he understood
it, but beyond all doubt he heard it. Crusoe
never presumed to think of going to sleep until his
master was as sound as a top, then he ventured to indulge
in that light species of slumber which is familiarly known
as "sleeping with one eye open." But, comparatively as
well as figuratively speaking, Crusoe slept usually with
one eye and a half open, and the other half was never