stage of social development; it is the expression of a real advance of human thought; and in telling the story of the religious experience of the Roman people we are but indirectly concerned with those more rude and rudimentary ideas which it displaced. But in private life, outside of the organised cult of the State and the family, magic was all through Roman history abundant, even over-abundant, and in this form I cannot pass it over entirely. Though the State authorities seem to have taken pains to exclude it rigidly from the public rites, and though there is little trace of it in the religious life of family and gens, yet there is evidence that it was deeply rooted in the nature of the people, and that they must have passed through an age in which it was an important factor in their social life. This fact, taken together with its almost complete elimination from the public religion, throws into relief the persistent efforts of the State authorities, from the framing of the old religious calendar to the time of the Augustan revival, to keep their relations with the Power clear of all that they believed to be unworthy or injurious. No better example can be found of the inherent antagonism between religion and magic. Private magic may be divided into two kinds, according as it was used to damage another, or only to benefit oneself. In the former case the State interfered to protect the person threatened with damage, and treated this kind of magic as a crime. The commonest form of it was that of the spell, or _carmen_, no doubt often sung, and accompanied by some action which would bring it under the head of sympathetic magic; but the spell alone is taken cognisance of by the State. Pliny has preserved three words from the XII. Tables which tell their own tale: "qui fruges excantassit."[109] Servius, commenting on the line of Virgil's 8th _Eclogue_, "atque satas alio vidi traducere messes," writes, "magicis quibusdam artibus hoc fiebat, unde est in XII. Tabb. 'Neve alienam segetem pellexeris.'" These last words, with the verb in the second person, are probably not quoted exactly from the ancient text,[110] but they help to show us the nature of this hostile spell. There must have been a belief that the spirit, or life, or fructifying power of your neighbour's crops could be enticed away and transferred to your own. This is confirmed by a remark of St. Augustine in the _de Civitate Dei_;[111] after quoting the same line from Virgil, he adds, "eo quod hac pestifera scelerataque doctrina fructus alieni in alias terras transferri perhibentur, nonne in XII. Tabulis, id est Romanorum antiquissimis legibus, Cicero commemorat esse conscriptum et ei qui hoc fecerit supplicium constitutum?" Given the belief, the temptation can be well understood if we reflect that the arable land of the old Romans was divided in sections of a square, and that each man's allotment would have that of a neighbour on two sides at least.[112] If one man's corn