But with conjecture I deal on principle but sparingly. It is time to turn to the Mars of the City-state of Rome; and it is at once interesting to find that until the age of Augustus, who introduced a new form of Mars-worship, he had no temple within the walls, and even outside only two _fana_, one an altar in his own field the Campus Martius, the other a temple dedicated in 388 B.C. outside the Porta Capena. "He was always worshipped outside the city," says Dr. J. B. Carter in his _Religion of Numa_, "as a god who must be kept at a distance." Should we not rather say that the god was unwilling to come within those sacred boundaries encircling the works of man? So stated, we may see in this singular fact a reminiscence of the time when Mars was really the wild spirit of the "outland," where wolves and human enemies might be met with; he was perhaps in some sense a _hostis_, a stranger, like the many other deities originally strange to Rome who, until the second Punic war, were never allowed to settle within the sacred precincts.[274] In one sense, however, Mars was actually resident in the very heart of the city. In a _sacrarium_ or chapel of the regia,[275] the ancient dwelling of the king, were kept the spears and shields which the Salii carried in their processions in March and October; and that the deity was believed to be there too must be inferred from the fact, if it be correctly stated by Servius, that the consul who was about to take the field entered the chapel and shook these spears and shields together, saying, "Mars vigila." I am, however, rather disposed to think that this practice belongs to a time when Mars was more distinctly recognised as a god of war, and when the weapons of the Salii were thought of rather as symbols of his activity than as objects in which he was immanent.[276] These are the salient facts in the oldest cult of Mars, and they are entirely in keeping with all we know of the early history and economy of the Roman people--a people economically dependent on agriculture, and especially on cattle-breeding, living in settlements in the midst of a wilder country, and constantly liable to the attacks of enemies who might raid their cattle and destroy their crops. I do not see in him only a deity of agriculture, or only a god of war; in my view he is a spirit of the wilder regions, where dwell the wolf and woodpecker which are connected with him in legend: a spirit who dwells on the outskirts of civilisation, and can with profit be propitiated both for help against the enemies beyond, and for the protection of the crops and cattle within, the boundaries of human activity.