Chapter XXIII: Section 4: And be it further enacted, that the said superintendents

shall be appointed by the President by and with the advice and consent of the Senate for the term of four years, with a salary of two hundred dollars payable out of any moneys in the treasury not otherwise appropriated; that they shall respectively take an oath before the District Judge of the United States for the Western District of Missouri, faithfully to discharge the duties imposed on them in and by the provisions of this act, and give a bond to the President of the United States and to his successors in office and assigns, and with sufficient security to be approved by the said judge in at least the penalty of twenty-five thousand dollars, to indemnify the President or his successors or assigns for any unlawful acts by them performed, or injuries committed by virtue of their offices, which said bonds may at any time be assigned for prosecution against the said respective superintendents and their sureties upon application to the said judge at the instance of the United States District Attorney or of any private party aggrieved.