rvice and whether he shall be dropped during or at the end of
probation or be absolutely appointed.

6. There may be certified and appointed in each State and Territory, in
the manner provided for in this rule, such number of substitute clerks,
not exceeding the ratio of one substitute to twenty regular clerks, in
such State or Territory as the Post-master-General may authorize, and
any vacancies occurring in class 1 in any State or Territory in which
substitutes have been appointed shall be filled by the appointment
thereto of those substitutes in the order of their appointment as
substitutes without further certification. The time during which any
substitute is actually employed in the service shall be counted as a
part of his probation.

RAILWAY MAIL RULE V.

1. Transfers may be made as follows:

(_a_) From the classified railway mail service to any classified
post-office, and from any classified post-office to the classified
railway mail service, upon requisition of the Postmaster-General.

(_b_) From the classified railway mail service to the Post-Office
Department, and from the Post-Office Department to the classified
railway mail service, upon requisition of the Postmaster-General.

2. No person shall be transferred as herein authorized until the
Commission shall have certified to the Postmaster-General that the
person whom it is proposed to transfer has passed an examination to test
fitness for the place to which he is to be transferred, and that such
person has been at least six months next preceding the date of the
certificate in the classified railway mail service or in the classified
service of the post-office or Department from which the transfer is to
be made: _Provided_, That no employee shall be transferred to any
grade which he could not enter by original appointment by reason of any
age limitation prescribed by the civil-service rules.

RAILWAY MAIL RULE VI.

1. Upon requisition of the Postmaster-General the Commission shall
certify for reinstatement in a grade or class no higher than that in
which he was formerly employed any person who within one year next
preceding the date of the requisition has, through no delinquency or
misconduct, been separated from the classified railway mail service.

RAILWAY MAIL RULE VII.

1. The general superintendent of the railway mail service shall report
to the Commission--

(_a_) Every probational (whether substitute or regular) and every
absolute