Both principles, the hereditary and the personal, were known in Mexico. The priests of Vitziliputzli succeeded by right of birth; the priests of other idols by election or by an offering made in their infancy. Priests were consecrated to their holy office by an unction which, as Father Acosta justly observes, resembled that of the Catholic Church. They were anointed from head to foot, and the hair was left to hang down in tresses moist from the application of the ointment. But when they were going to perform the offices of their sacred calling on mountains, or in dark caves, they were anointed with an altogether different substance, compounded by a peculiar process from certain venomous reptiles. This was supposed to give them courage (H. I., b. 5, ch. 26). The consecration of the Levitical priesthood, originally personal, descended from father to son, and was moreover confined to the members of this single tribe. It could not be repeated after its first performance. Hence we have in this case an interesting example, not only of an hereditary priesthood, but also of the manner in which its exclusive sanctity was supposed to have been originally established. Moses, who derived his appointment directly from Jehovah, was employed to consecrate Aaron and his sons by means of an elaborate and imposing ritual communicated to him by that deity himself. The means thus taken (in Jehovah's own words) "to hallow them, to minister unto me in the priest's office," were effectual for all time; the descendants of Aaron after that being priests by nature. How great was the value of the consecration thus given, may be seen by the fact that Moses was ordered to threaten the penalty of death against any one who should dare to manufacture oil similar to that used in anointing Aaron and his sons (Exod. xxviii. 29; xxx. 30-33). Priestly power among Christian nations is communicated in a solemn ceremonial, and is conferred only upon the individual recipient. It does not descend in his family, but it is capable of being imparted by bishops, who have themselves received a higher grade of priestly consecration. By some it is actually supposed that a mysterious virtue, derived directly from Christ through the apostles, is conveyed to the recipient of holy orders. But whether the apostolical succession be conveyed or not in the Ordination Service of the Church of England, it is certain that a high authority is held to be given to the priest by the laying on of the hands of the Bishop and of the other priests present at the time. The rights which he receives are thus expressed:— "Receive the Holy Ghost for the office and work of a priest in the Church of God, now committed unto thee by the imposition of our hands. Whose sins thou dost forgive they are forgiven; and whose sins thou dost retain, they are retained, and be thou a faithful dispenser of the Word of God, and of his holy sacraments. In the name of the Father and of the Son, and of the Holy Ghost. Amen."