Men have looked upon the desert as barren land, the free holding of whoever chose; but in fact each hill and valley in it had a man who was its acknowledged owner and would quickly assert the right of his family or clan to it, against aggression. Even the wells and trees had their masters, who allowed men to make firewood of the one and drink of the other freely, as much as was required for their need, but who would instantly check anyone trying to turn the property to account and to exploit it or its products among others for private benefit. The desert was held in a crazed communism by which Nature and the elements were for the free use of every known friendly person for his own purposes and no more. Logical outcomes were the reduction of this licence to privilege by the men of the desert, and their hardness to strangers unprovided with introduction or guarantee, since the common security lay in the common responsibility of kinsmen.