Sec. 1b. In all counties in this State having a population of not less than thirty-one thousand, eight hundred and thirty (31,830), nor more than thirty-two thousand, nine hundred and forty-one (32,941), according to the last available Federal Census as same now exists and may hereafter exist, the County School Trustees shall hold meetings once each month on the first Monday in each month, or as soon thereafter as practicable, or at such other times when called by the President of the Board of County School Trustees, or at the instance of any three (3) members of said Board and the County Superintendent; the meeting place to be at the county seat and in the office of the County Superintendent, or at such other place in the County Courthouse as may be designated by the President of said Board of County School Trustees. Each County School Trustee shall be paid Four Dollars ($4) per day for the time spent in attending such meeting, not to exceed eighteen (18) days in any one year. Such compensation shall be paid out of the school administration fund of each county by warrants drawn against such fund as the law now provides, after the approval of this Act.