otion in the
classified service of the internal-revenue district in which the board
is located.

(_b_) Conduct such other examinations as the Commission may direct.

(_c_) Mark the papers of such examinations as the Commission may
direct.

2. The papers of every examination shall be marked under the direction
of the Commission, and each competitor shall be graded on a scale of
100, according to general average determined by the marks of the
examiners.

3. Immediately after the general average shall have been ascertained
each competitor shall be notified that he has passed or has failed to
pass.

4. No competitor who has failed to pass an examination and no eligible
during the period of his eligibility shall be allowed reexamination
unless he shall furnish satisfactory evidence to the Commission that at
the time of his examination he was, because of illness or other good
cause, incapable of doing himself justice; and his rating on such
reexamination, if an eligible, shall cancel and be a substitute for his
rating on his previous examination.

5. All competitors whose claim to preference under section 1754, Revised
Statutes, has been allowed by the Commission who attain a general
average of 65 per cent or over, and all other competitors who attain a
general average of 70 per cent or over, shall be eligible for
appointment to the place for which they were examined, and the names of
all the eligibles shall be entered in the order of grade on the proper
register of eligibles.

6. When two or more eligibles are of the same grade, preference in
certification shall be determined by the order in which their
application papers were filed.

7. The period of eligibility shall be one year from the date on which
the name of the eligible is entered on the register.

INTERNAL-REVENUE RULE IV.

1. All vacancies, unless filled by promotion, reduction, transfer, or
reappointment, shall be filled in the following manner:

(_a_) When a vacancy occurs in any district, the collector thereof
shall report the fact to the Commissioner of Internal Revenue, stating
the class in which the vacancy occurs and whether in his judgment the
place should be filled. If the Commissioner decides that the good of the
public service requires that it be filled, he shall request the
secretary of the board of examiners of that district to certify to him
the names of