State may cause writs to be issued for elections of senators for the State. (2.) In case of the dissolution of the Senate The writs shall be issued within fourteen ten days from the proclamation of such dissolution date on which the places to be filled became vacant Section 13 (1.) Subject to this Constitution, the term of service of a senator expires upon the expiry or dissolution of the second House of Representatives to expire or be dissolved after he was chosen or, if there is an earlier dissolution of the Senate, upon that dissolution. (2.) As soon as may be after the Senate first meets, and after the first meeting of the Senate following a dissolution thereof of the Senate, the Senate shall, in accordance with the succeeding provisions of this section, divide the senators chosen for each State into two classes, as nearly equal in number as practicable; and the places of the senators of the first class shall become vacant at the expiration of the third year three years, and the places of those of the second class at the expiration of the sixth year six years, from the beginning of their term of service; and afterwards the places of senators shall become vacant at the expiration of six years from the beginning of their term of service. (3.) In the case of each State, where the number of senators to be divided is an even number the number of senators in each of the two classes shall be equal and where the number of senators to be divided is an odd number the number of senators in the first class shall be one more than the number in the second class. (4.) Sub-section (1.) of this section applies to senators included in the first class, but the term of service of senators included in the second class expires upon the expiry or dissolution of the first House of Representatives to expire or be dissolved after they were chosen. (5.) Where, since the election of senators for a State following a dissolution of the Senate but before the division of the senators for that State into classes in pursuance of this section, the place of a senator chosen at that election has become vacant, the division of senators shall be made as if the place of that senator had not so become vacant and, for the