When the mayor does not return the resolution, within ten days after the date of reference, it shall be considered approved and become a law. ART. 108. The resolutions of the municipal councils may be suspended by the mayor, the governor of the province, or the President of the Republic, when in their opinion they are contrary to the constitution, the treaties, the laws, or the resolutions passed by the provincial councils within the sphere of their powers. But the right to take cognizance and pass upon the claims which may arise out of said suspension shall be reserved to the courts of justice. ART. 109. The members of the municipal councils shall be personally responsible before the courts of justice, in the manner and form established by law, for the acts done by them in the performance of their duties. SECTION THIRD THE MAYORS AND THEIR POWERS AND DUTIES ART. 110. Mayors shall have power: 1. To publish such resolutions of the municipal councils as may have force of law, and execute and cause the same to be executed. 2. To administer the municipal affairs, issuing orders and instructions as well as rules for the better execution of the resolutions of the municipal councils, whenever the latter may fail to do so. 3. To appoint and remove the employes of their respective offices in the manner provided by law. ART. 111. The Mayors shall be personally responsible before the courts of justice, in the manner prescribed by law, for all acts performed by them in the discharge of their functions. ART. 112. Each Mayor shall receive a salary, to be paid by the municipal treasury, which may be changed at any time; but such change shall not take effect until after a new election for Mayor has been held. ART. 113. In case of vacancy, either temporary or permanent, of the office of Mayor, the president of the municipal council shall act as Mayor. Should the absence be permanent, the substitute shall act until the end of the term for which the Mayor was elected. TITLE XIII THE NATIONAL TREASURY ART. 114. All property existing within the territory of the Republic not belonging to provinces, municipalities or private individuals or corporations, shall belong to the State. TITLE XIV AMENDMENTS TO THE CONSTITUTION ART. 115. The Constitution shall not be amended, in whole or in part, except by resolution passed by two-thirds of the total number of members of each House of Congress. Six months after the resolution to amend the Constitution has been passed, a constitutional convention shall be called to assemble for the exclusive and specific purpose of either approving or rejecting the amendment. Each House shall, in the meantime, continue to perform its duties with absolute independence of the convention. Delegates to the said convention shall be elected by each province at the rate of one for every fifty thousand inhabitants, in the manner that may be provided by law. TRANSIENT PROVISIONS