be found suitable and qualified, the vacancy will be filled at discretion.  Appointments to all other positions in the said post-offices may be, until otherwise ordered, excepted from the operation of the rules.

10.  Special agents of the Post-Office Department shall be appointed by the Postmaster-General at discretion from persons already in the postal service, and who shall have served therein for a period of not less than one year immediately preceding the appointment; but if no person within the service shall, in the judgment of the Postmaster-General, be suitable and qualified, the appointment shall be made from all applicants under the rules.

  11.  Mail-route messengers shall be appointed in the manner provided for
  the appointment of postmasters whose annual salary is less than $200.

12.  When a vacancy occurs in the office of register or receiver of the land office, or of pension agent, applications in writing from residents in the district in which the vacancy occurs may be addressed to the Secretary of the Interior, inclosing proper certificates of character, responsibility, and capacity; and if any of the applicants shall be found suitable and qualified, the name or names, not exceeding three, of the best qualified shall be certified by the board of examiners to the Secretary, and from this list the nomination will be made.  If, however, no applicants under this regulation shall be found suitable and qualified, the nomination will be made at discretion.

13.  When a vacancy occurs in the office of United States marshal, applications in writing from residents in the district in which the vacancy occurs may be addressed to the Attorney-General of the United States, inclosing proper certificates of character, responsibility, and capacity; and if any of the applicants shall be found suitable and qualified, the name or names, not exceeding three, of the best qualified shall be certified by the board of examiners to the Attorney-General, and from this list the nomination will be made.  If, however, no applicants under this regulation shall be found suitable and qualified, the nomination will be made at discretion.

14.  Appointments to fill vacancies occurring in offices in the several Territories, excepting those of judges of the United States courts, Indian agents, and superintendents, will be made from suitable and qualified persons domiciled in the Territory in which the vacancy occurs, if any such are found.

15.  It shall be the duty of the examining board in each of the Departments to report to the Advisory Board such modifications in the rules and regulations as in the judgment of such examining board are required for appointments to certain positions to which, by reason of distance, or of difficult access, or of other sufficient cause, the rules and regulations can not be applied with advantage;