§ 79. Meetings. The commissioners shall meet at least once in each month, except the month of August, and at such other times as they may determine or the business of the fund may require. Special meetings may be called by the industrial commissioner upon five days' notice, and may also be called by any two commissioners upon like notice. Minutes shall be kept of all regular and special meetings, and shall show the names of the commissioners attending, and each matter brought before the commissioners for their consideration together with the vote of each commissioner thereon. The secretary shall be the custodian of the minutes and records thereof, and shall perform such other duties and have such other administrative powers as may be assigned to him by the commissioners.