MAY 25.] THE NEW ZEALAND GAZETTE. 2183

Connections of transformers on single and polyphase circuits.
Lightning-arresters used on power circuits, principles of.
Installation of motors and generators.
Electric tramways, direct-current systems :—
Fundamental principles and equipment of trolley systems, with
track return.
Use of positive and negative feeders ; boosters.
Track construction and bonding.
Electrolysis.
Board of Control requirements and tests.
Light and power distribution :—
Systems of distribution, D.C. and A.C., two-, three-, and four-
wire.
Regulation of voltage at central station.
General relation between generating stations, converter
stations, sub-stations, and receivers.
Gas and oil engines :—
Modern types—their construction, theory, installation, opera-
tion, and maintenance.

69. One month’s notice of the intention to hold such examinations
    shall be given by notice published in the Post and Telegraph Official
    Circular, and the names of officers who have passed the required
    standard of examination shall be entered by the Commissioner in a
    record kept for that purpose ; and in promoting any officers to vacancies,
    or from one class or grade to another, effect shall as far as possible be
    given to the results of such examinations. When a vacancy occurs in
    a branch in which knowledge of theory or practice in the science of
    electricity in its relation to telegraphy is requisite, such examination
    shall be conducted by the Inspector of Telegraph-offices or a Telegraph
    Engineer, or such other officers as may from time to time be appointed
    by the Commissioner ; and where knowledge of or capacity in business
    relating to the Post Office branch is required the examination shall be
    held by the Chief Inspector, or an Assistant Inspector of Post-
    offices, or such other officer or officers as the Commissioner may from
    time to time appoint ; or the Commissioner may appoint any of such
    officers to conduct all examinations or any such examination under
    this regulation.

The following are the certificates to be supplied, and examinations
to be passed, for appointment to different positions in the Depart-
ment :—

GENERAL DIVISION.

Telegraph message- 14 and Age, Competency in Standard V. Pre-
boy over character, ference to be given to lads who
health pass a higher educational test
than Standard V.

P.O. boy messenger 14 and Ditto Ditto.
over

Other officers not 16–40 " Competency (Standard IV).
specified

Switchboard attend- 16–25 " Competency (Standard VI).
ant

Assistant 16–25 " "

Matron, supervisor, 20–45 " "
Postmistress,
and counterwoman

Shorthand-writer and 16–30 " Educational certificate of pro-
typist ficiency (Standard VI)

CLERICAL DIVISION.

Telegraphist and 20–45 Age, Educational certificate of pro-
book-keeper (fe- character, ficiency (Standard VI).
male) health