2938

THE NEW ZEALAND GAZETTE.

No. 72

THE WORLD.

BRITISH OFFICIAL WIRELESS MESSAGES TO MERCHANT SHIPS.
Diagram of Areas

Prepared by the Hydrographic Dep't Admiralty 1st May 1926, under the Superintendence of Rear Admiral H.P.Doughty C.M.G.Hydrographer
Misc. 87

Notice to Mariners No. 60 of 1928.

Marine Department,
Wellington, N.Z., 26th September, 1928.
NEW ZEALAND.-NORTH ISLAND.-WEST COAST.-WANGANUI
HARBOUR.

South Mole Groyne, Position of, and Width of Channel amended.
Previous Notice: Wellington Notice No. 6 of 1928.
Position: Lat. 39° 57' S., long. 175° 00' E. (approx.).
Details: The outer end of the recently completed South
Mole Groyne, which is 400 ft. in length, is situated 200 ft.
from South Mole, and at a distance of 530 ft. inside a right
line drawn between the seaward end of North and South Moles.
Remarks: The width of the clear waterway between
North Mole and the outer end of South Mole Groyne is 365 ft.
Chart affected: No. 2588 (plan).
Publications: New Zealand Pilot, 1919, page 100; New
Zealand Nautical Almanac and Tide Tables, 1928, page
213 and plan facing page 216; and 1929 (in press), page 225
and plan facing page 226.
Authority: Wanganui Harbour Board, 20/9/28.
G. C. GODFREY, Secretary.
(M. 4/2112.)

Notice to Mariners No. 61 of 1928.

Marine Department,
Wellington, N.Z., 26th September, 1928.
EXAMINATION OF MASTERS AND MATES.-CHANGE IN METHOD
OF EXPRESSING SUN'S ELEMENTS IN NAUTICAL ALMANACS.

Attention is drawn to the change in method of
expressing certain elements of astronomical ephemeris
as conveyed in the 1929 edition of the "Admiralty Nautical
Almanac abridged for the use of Seamen" and in the
contemporary "New Zealand Nautical Almanac and Tide
Tables," in both of which publications two elements—the
Right Ascension of the Mean Sun and the Equation of Time—
have been substituted by the Quantity R and the Quantity E
respectively. Both of these quantities (introduced for the
first time) are tabulated for every two hours of Greenwich
mean time; and explanations of their use are provided in
each of those publications.

On and after 1st January, 1929, the "Admiralty Nautical
Almanac abridged for the use of Seamen," 1929, will be used
in examinations of masters and mates for certificates of
competency conducted by the Board of Trade in Great Britain
and by the Marine Department in New Zealand. Intending
applicants for examination are enjoined to give careful attention
to the explanations of those newly tabulated quantities,
and to make themselves conversant with their use.
The "Admiralty Nautical Almanac abridged for the use of
Seamen," 1929, has already been issued; and the "New
Zealand Nautical Almanac and Tide Tables," 1929, will be
obtainable by purchase (price 3s. 6d.) from Government
shipping offices within New Zealand after 1st November,
1928.

Notice to Mariners No. 62 of 1928.

Marine Department,
Wellington, N.Z., 27th September, 1928.
THE following Notices to Mariners, which have been
received from the Commonwealth Lighthouse Service
and the Department of Defence, Melbourne, are published for
general information.
G. C. GODFREY, Secretary.

LIGHThOUSE SERVICE No. 18 of 1928.
AUSTRALIA.-EAST COAST.-CUMBERLAND ISLANDS.--
BAILEY ISLET.

Light (U) established.
Mariners and others are hereby notified that a group-
flashing white light (U) was established on Bailey Islet on
18th August, 1928.
Previous Notices: Nos. 3 and 8 of 1928.
Position: On the summit of the islet. Lat. 21° 01' S., long.
149° 34' E., on Chart No. 347.
Details--
Character: Group-flashing white (U) showing three
flashes every nine seconds, thus: Flash, ⅓ sec.;
eclipse, 1 sec.; flash, ⅓ sec.; eclipse, 1 sec.; flash,
⅓ sec.; eclipse, 6 secs.
Elevation: 117 ft. (not 132 ft. as previously stated).
Power: 3,000 candles.
Visibility: 17 miles.
Structure: Square concrete tower, white lantern, 30 ft.
in height.
Remarks: The light is unwatched.
No further notice will be given.

DEPARTMENT OF DEFENCE, No. 25 OF 1928.
SOUTH PACIFIC OCEAN, NEW HEBRIDES, FILA HARBOUR
(VILA).

Intended Alteration in Leading Lights.
Date of Alteration: On or about 1st January, 1929.
Position: Lat. 17° 44' S.; long. 168° 19' E.
Alteration: The character of the front light will be altered
from a fixed red to a white flashing light, thus: Flash,
0·3 sec.; eclipse, 0·6 sec. Visibility, 11 miles.
The character of the rear light will be altered from a fixed
red to a white flashing light, thus: Flash, 2 sec.; eclipse,
2 sec. Visibility, 13 miles.