We have seen that in the judicial duel magic arts were popularly supposed to have power to control the interposition of God. This was likewise the case with the vulgar ordeals, and in addition a special power was attributed to the use or abuse of the holy chrism. The Council of Tours, in 813, informs us that it was generally believed that a criminal who drank the chrism or anointed himself with it could not be convicted by any ordeal.[1287] So serious indeed was this considered that Charlemagne in 809 decreed that a priest giving out the chrism for this purpose should not only be degraded but should lose a hand—a law which long continued in force, nominally at least.[1288] The belief was not ephemeral, for until the early part of the twelfth century a canon was carried through all the collections which speaks of the matter as a fact proved by experience.[1289] The superstition probably died out towards the middle of the century when the number of sacraments was increased from three to seven, and the comparative importance of the chrism was thus diminished in the popular eyes. The belief that the judgment of God could be perverted or eluded by magic arts still continued, however, and precautions were commonly taken to prevent their use.[1290] Holy water, moreover, was lavishly sprinkled on the materials employed in the ordeal and on the patient, and was given to him to drink to prevent diabolic illusions by which it was imagined that the purposes of God could be defeated.[1291] Precautions also were taken to guard against processes by which, in the fire ordeals, it was believed that the human frame could be rendered incombustible, and for this object a widely prevailing custom required that for three days previous the hand should be wrapped up to guard against its being thus fortified.[1292] The nature of these unguents may be guessed from a prescription given by Albertus Magnus, consisting of mallow and radish juice, white of egg, lime, and “psillus” seeds, the use of which he assures us will enable a man with impunity to enter the flames or to carry red-hot iron.[1293] Doubtless reliance on some such expedients may partially explain the readiness with which the ordeal was undertaken. CHAPTER XVII. THE CHURCH AND THE ORDEAL. The relation of the Church to the vulgar ordeals presents even a more complex question than that which has already been discussed of its connection with the judicial combat. The ordeals were less repugnant to its teachings and more completely dependent upon its ministrations, for while a duel might be fought without the aid of a priest the efficacy of an ordeal depended wholly upon the religious rites which gave it the sanction of a direct invocation of the Almighty.