It shall be the duty of the board to keep itself advised, from time to time, of the financial condition of the various state depositories, as well as of the financial condition and standing of the securities on the bonds of the depositories; and, if at any time the board should become satisfied as to the insolvency of any of the depositories or that the affairs of any of the depositories are in an embarrassed financial condition, it shall be the duty of the board to direct the director to withdraw the money of the state from such depository. In case the board should be advised of the insolvency of the securities on the bond of any of the depositories, it shall be the duty of the director to notify the depository to strengthen the bond; and if, at the end of ten days, the bond is not strengthened, it shall be the duty of the board to direct the director to withdraw the money of the state from such depository. In either event, the board may also withdraw designation as a state depository.