3. The United States jurors and alternates of the group juries shall be nominated by the chiefs of departments to which the respective groups belong. The jurors and alternates of the group juries representing foreign countries and the United States insular possessions shall be nominated by the commissioners of such countries. The Louisiana Purchase Exposition Company shall certify to the board of lady managers the number of groups in which the exhibits have been produced in whole or in part by female labor; to each of the groups so certified the board of lady managers may appoint one juror and one alternate to that juror; such appointees, when confirmed, shall have the privileges and be amenable to the regulations provided for other jurors and alternates. All the above nominations shall be made not later than August 1, 1904, except that nominations made to fill vacancies may be made at any subsequent time. Jury nominations made by commissioners of foreign countries shall be forwarded to the president of the Louisiana Purchase Exposition Company. Nominations made by chiefs of departments and by the board of lady managers shall be submitted to the director of exhibits, and when approved he shall transmit them to the president of the Exposition Company. The nomination of group jurors and alternates, when approved by the president of the exposition, shall be transmitted to the president of the Louisiana Purchase Exposition Commission for the approval of that body. These nominations having been considered and confirmed by the authorities, as provided by section 6 of the act of Congress relating to the approval of the awarding of premiums, the appointments to the international jury shall be made in accordance with section 6 of Article XXII of the official rules and regulations of the Louisiana Purchase Exposition Company. 4. Each group jury shall choose its own officers, consisting of a chairman, a vice-chairman, and a secretary. Of the two first-named officers one shall be a citizen of the United States and the other shall be from a foreign country represented in the division of exhibits. 5. The chief of each department shall have general charge of the organization and direction of the group of juries in his department for the purpose of securing the proper examinations of all exhibits and to see that the work laid out for the juries is conducted strictly in accordance with the official rules and regulations. He shall be admitted to all sessions of these juries for the purpose of directing their attention to matters relating to the judging of exhibits. 6. The work of the group juries shall begin September 1, 1904, and shall be completed not later than twenty days thereafter.