The council shall meet in regular session at least once each month at a time and place within the county to be fixed by resolution of the council. Special meetings may be had at any time upon call of the chairman and notice thereof given by the secretary to the members of the said council. The time and method of giving such notice of special meetings shall be fixed by resolution of the council. A quorum of said council shall consist of three (3) members and a quorum at any meeting legally called may exercise all the powers vested in the council.