We must bear in mind that man in a low stage of civilization has generally a quicker perception of what nature demands, and a greater readiness in conforming to her requirements; perhaps, also, a more elastic physical constitution, which accommodates itself more readily to the conditions of the soil where he dwells. In Sardinia agriculture is prosecuted under physical conditions precisely similar even at the present day; the pestilential atmosphere exists, but the peasant avoids its injurious effects by caution in reference to clothing, food, and the choice of his hours of labour. In fact, nothing is so certain a protection against the "aria cattiva" as wearing the fleece of animals and keeping a blazing fire; which explains why the Roman countryman went constantly clothed in heavy woollen stuffs, and never allowed the fire on his hearth to be extinguished. In other respects the district must have appeared attractive to an immigrant agricultural people: the soil is easily laboured with mattock and hoe and is productive even without being manured, although, tried by an Italian standard, it does not yield any extraordinary return: wheat yields on an average about five-fold.(3) Good water is not abundant; the higher and more sacred on that account was the esteem in which every fresh spring was held by the inhabitants. Latin Settlements No accounts have been preserved of the mode in which the settlements of the Latins took place in the district which has since borne their name; and we are left to gather what we can almost exclusively from a posteriori inference regarding them. Some knowledge may, however, in this way be gained, or at any rate some conjectures that wear an aspect of probability. Clan-Villages