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CHAP. VIII. have laid down that, in the beginning of things, Occupancy first gave a right against the world to an exclusive but temporary enjoyment, and that afterwards this right, while it remained exclusive, became perpetual. Their object in so stating their theory was to reconcile the doctrine that in the state of Nature res nullius became property through Occupancy, with the inference which they drew from the Scriptural history that the Patriarchs did not at first permanently appropriate the soil which had been grazed over by their flocks and herds.

The only criticism which could be directly applied to the theory of Blackstone would consist in inquiring whether the circumstances which make up his picture of a primitive society are more or less probable than other incidents which could be imagined with equal readiness. Pursuing this method of examination, we might fairly ask whether the man who had occupied (Blackstone evidently uses this word with its ordinary English meaning) a particular spot of ground for rest or shade would be permitted to retain it without disturbance. The chances surely are that his right to possession would be exactly coextensive with his power to keep it, and that he would be constantly liable to disturbance by the first comer who coveted the spot and thought himself strong enough to drive away the possessor. But the truth is that all such cavil at these positions