It shall be the duty of the state and county officers respectively charged with furnishing books and stationery for public use, to furnish suitable books for the purpose to such officers; and such books shall be subject to examination by any citizen at any reasonable time, and such citizen shall be entitled to take memoranda from the same without charges being imposed: provided, if any person or persons desire certified copies of any such account, the officer or person in charge of said books shall be entitled to demand and receive fees for the same, as for copies of other public records in his control.