II

like the villagers from the ravages of the nomads behind. Insensibly, they made common cause with the peasants already on the soil, and found out that they, too, were peasantry. So we see clans, born in the highlands of Yemen, thrust by stronger clans into the desert, where, unwillingly, they became nomad to keep themselves alive. We see them wandering, every year moving a little further north or a little further east as chance has sent them down one or other of the well-roads of the wilderness, till finally this pressure drives them from the desert again into the sown, with the like unwillingness of their first shrinking experiment in nomad life. This was the circulation which kept vigour in the Semitic body. There were few, if indeed there was a single northern Semite, whose ancestors had not at some dark age passed through the desert. The mark of nomadism, that most deep and biting social discipline, was on each of them in his degree.