||48 in one month after they shall have been passed, be published in some newspaper, printed in said City, or certified copies thereof, be posted up in eight of the most public places in the City. Sec. 36. All ordinances of the City may be proven by the seal of the corporation; and when printed or published in book or pamphlet form, purporting to be printed or published by the authority of the corporation; the same shall be received in evidence in all courts, or places without further proof. Sec. 37. The mayor and aldermen, shall be conservators of the peace within the limits of the City; and shall have all the powers of justices of the peace therein, both in civil and criminal cases, arising, under the laws of the State. They shall, as justices of the peace, within the limits of said City, perform the same duties, be governed by the same laws, give the same bonds and securities, as other justices of the peace, and be commissioned as justices of the peace, in and for said City, by the Governor. Sec. 38. The mayor shall have exclusive jurisdiction in all cases, arising under the ordinances of the corporation, and shall issue such process as may be necessary to carry said ordinances into execution and effect. Appeals may be had from any decision or judgment of said mayor or aldermen, arising under the ordinances of said City, to the municipal court under such regulations, as may be be presented by ordinance; which court shall be composed of the mayor, as chief justice, and the aldermen, as associate justices; and from the final judgment of the municipal court, to the county court of San Pete county, in the same manner as appeals are taken from justices of the peace; provided the parties litigant shall have a right to a trial by a jury of twelve men, in all cases before the municipal court. The municipal court shall have power to grant writs of Habeas Corpus, and try the same, in all cases arising under the ordinances of the City council. Sec. 39. The municipal court shall sit on the first Monday of every month, and the City council, at such times and places as may be prescribed by City ordinance, special meetings of which may at any time be called by the mayor or any two aldermen.