94 WITH THE CAMEL CORPS UP THE NILE.

outpost duty every twenty- four hours. Since several high hills commanded all the tracks, ravines, and gullies by which we might be attacked, it was easy enough to post sentries during the day to see for GOING THE ROUNDS AT NIGHT (GAKDUL).

many miles round. At night, however, it was different ; a chain of sentries had to be established round the whole place, and with so many glens and gullies it was impossible to command the whole satisfactorily with a few men on a pitch-dark night. Oh, the agony of