13. Presidencies in the Aaronic Priesthood.--The Aaronic priesthood, as already remarked,[127] has to do more especially with the temporal affairs of the church; and the general {348} presidency of it is the presiding bishopric of the church. The local bishops in like manner preside over the Aaronic priesthood within their respective districts. The powers, rights, duties and responsibilities of the bishops have been treated at some length in Section III, Part IV, under the caption THE BISHOPRIC, and to the paragraphs on that subject the student is directed. 14. Priests.--Forty-eight Priests of the Aaronic order of priesthood constitute a quorum. The president of this quorum is to be a bishop, for that is one of the duties of his calling to sit in council with this quorum and teach the members thereof their duties.[128] There is no limit to the number of quorums of priests in the church; there may be such a quorum in every ward or branch. 15. Teachers.--Twenty-four Teachers constitute a quorum. They are presided over by a president and two counselors, who are to teach them the duties of their office.[129] 16. Deacons--Twelve deacons form a quorum. The quorum is presided over by a president and two counselors, who are to instruct them in the duties of their office.[130] The offices of teacher and deacon are appendages[131] to the Aaronic priesthood, as the office of elder and bishop are appendages to the Melchisedek priesthood.[132] What is meant by appendage to the priesthood is an addition to the regular quorums of the priesthood. When so added they become part of the organization but in a subordinate way. Then elders may assist high priests in their duties when called upon, and may officiate in their stead when there is no high priest present; but when the high priest is present the elder has no right to act in his stead unless called upon. The teacher may assist the priest in his duties, as the deacon may assist the teacher in his duty,[133] but {349} in that event the lesser quorums act in subordination to the ones they are authorized to assist. They were quorums added to the regular organization of the priesthood, when the duties were so multiplied that the higher and regular quorums could not discharge them. By creating these appendages to the priesthood men could be called into requisition whose wisdom and experience would not justify placing upon them all the authority with the accompanying responsibility of the higher offices of the priesthood. 17. Territorial Division of the Church.--The church in relation to the territory it occupies, for convenience in government, is divided into stakes of Zion, wards and branches.