tory he shall be notified by the appointing officer that he will
not receive absolute appointment because of such unsatisfactory conduct
or want of capacity, and such notification shall discharge him from the
service: _Provided_, That the probation of an employee in the
Indian-school service shall terminate at the end of the school year in
which he is appointed: _And provided further_, That the time which
an employee has actually served as substitute in parts of the service
where substitutes are authorized shall be counted as part of the
probationary period of his regular appointment, but that time served
under a temporary appointment shall not be so counted.

5. If the appointing or nominating officer shall object to an eligible
named in the certificate, stating that because of some physical defect,
mental unsoundness, or moral disqualification, particularly specified,
said eligible would be incompetent or unfit for the performance of the
duties of the vacant position, and if said officer shall sustain such
objection with evidence satisfactory to the Commission, the Commission
may certify the eligible on the register who is in average percentage
next below those already certified in place of the one to whom objection
is made and sustained.

6. Certifications for appointment of persons for service in or on direct
detail from any Department or office in Washington, D.C., shall be so
made as to maintain as nearly as possible the apportionment of such
appointments among the several States and Territories and District of
Columbia upon the basis of population, except to appointments in the
Government Printing Office, to the position of printer's assistant,
skilled helper, and operative in the Bureau of Engraving and Printing,
to positions in the post quartermaster's office, in the pension agency,
and other local offices in the District of Columbia, and to the
positions of page and messenger boy and apprentice or student.

7. Within any part of the service to which promotion regulations have
been or may hereafter be applied certification of those eligible to
original appointment shall not be made for filling a vacancy in a
position above the lowest class in any grade whenever there is any
person eligible and willing to be promoted to said vacancy:
_Provided_, That a vacancy in any position requiring the exercise
of technical or professional knowledge may b