Another thing Binney hated to do was to stand guard. This duty came to each one in turn, every three or four nights, according to the number of sentinels required, and on a night of duty each one was obliged to keep watch "two hours on and four off." That is, if Binney or Glen went on duty at six o'clock, he would be relieved at eight, and allowed to sleep until midnight, when he would stand guard again at one of the several posts beyond the camp limits, until two. Then he might sleep until six, when, if camp was not already broken, he must again go on duty until it was, and the wagon-train was in motion.