Said commissioners are hereby authorized and empowered to establish and adopt rules for the regulation and discipline and the work and labor of the persons confined in and on said work farm, factory or shop; and to appoint a superintendent thereof, whose term of office shall be during good behavior, the salary to be fixed by said commission. The superintendent shall have the usual powers of a deputy sheriff, shall take the constitutional oath of office before assuming his duties, same to be filed with the county clerk; and before entering such duties he shall execute to the people of the state of Michigan a bond in the penal sum of 5,000 dollars, to be approved by said commissioners, and filed with the county clerk, conditioned that he shall faithfully account for all money and property that may come into his hands by virtue of his office and faithfully perform all the duties incumbent upon him as such superintendent, according to law. It shall also be the duty of the commissioners to employ and fix the compensation of such subordinate officers, guards and employes as such commission, with the approval of the board of supervisors, may deem necessary, and prescribe their duties not otherwise prescribed by law, and to make all rules and regulations in relation to the management and government thereof as they may deem expedient. But no appropriation of moneys shall be made by said commission without the sanction of the said board of supervisors by a vote of a majority of all the members-elect.