The large number of waste lands, attested by the facility with which any one who was willing to cultivate them might obtain them, bears witness in its turn also to the depopulation of the country, and the deplorable condition in which property existed. The concentration of landed property is a decisive proof of this state of things. When this kind of property is safe and prosperous, it tends to become divided, because every one desires to possess it. When, on the other hand, we see it accumulated more and more in the same hands, we may almost certainly conclude that it is in an unsound condition, that the feeble cannot sustain themselves upon it, and that the strong alone can defend it. Landed property, like moveable property, is only to be found where it can continue to exist in safety. There is reason to believe that most tributary lands, even those which were not originally the property of the cultivators who laboured on them, became at length by a right of occupancy in reality their possessions, though burdened by rentals and exactions of service. This is the natural course of things: it is very difficult to remove a cultivator who has with his family for a long time tilled the same soil. {129} Different Kinds Of Landed Property. Such were the vicissitudes of landed property, from the sixth to the eleventh century. I will now give a summary view of the general characteristics of this state of things, and endeavour to estimate their influence on the progress of general civilization, and more particularly of political institutions.