Dec. 18.] THE NEW ZEALAND GAZETTE. 3767

Details.—The fixed light with white and red sectors will be replaced by a light having the undermentioned characteristics:—
Character.—A group flashing light with white and red sectors, showing four flashes every twelve seconds, thus—flash ⅓ sec., eclipse 1 sec.; flash ⅓ sec., eclipse 1 sec.; flash ⅓ sec., eclipse 1 sec.; flash ⅓ sec., eclipse 7⅔ secs.
Elevation.—Unaltered.
Visibility.—White light 20 miles; red light 9 miles.
Sectors.—Red from 233° (S. 45° W. mag.) to 249° (S. 61° W. mag.); white thence through west to 39° (N. 31° E. mag.); red thence to 48° (N. 40° E. mag.).
Power.—White light 7,000 candles; red light 3,000 candles.
Structure.—Unaltered.
Remarks.—The light will be unwatched. The auxiliary fixed white light will be discontinued; the signal-station will also be discontinued.
Note.—No further notice will be given.
Variation.—8° E.

MALACCA STRAIT.
PENANG HARBOUR.—ALTERATIONS IN LIGHT-BEACONS, BEACONS AND BUOYS.
(a.) Alteration in position of No. 4 light-beacon:
New position.—At a distance of about one cable northward from position shown on charts. Lat. 5° 21' 26" N., long. 100° 21' 7" E.
Description.—A light-beacon painted white, exhibiting a fixed green light.
(b.) Light-beacon established:
Position.—Lat. 5° 19' 50" N., long. 100° 21' 5" E.
Description.—A light-beacon painted white, exhibiting a fixed white light.
(c.) Beacon established:
Position.—Lat. 5° 24' 20" N., long. 100° 20' 50" E.
Description.—A red beacon.
(d.) Beacon destroyed:
Position.—Lat. 5° 23' 20" N., long. 100° 21' 28" W.
Description.—A white beacon.
Remarks.—This beacon is to be expunged from the charts.
(e.) Buoys withdrawn:
Details.—The following buoys have been withdrawn and are to be expunged from the charts:—
(i.) The two red buoys with topmarks, at distances of about 3 cables and 3½ cables northward respectively from Fort Cornwallis.
(ii.) The wreck-buoy in the vicinity of the red beacon described in (c) above.
(iii.) No. 1 red conical buoy, at a distance of about 2 cables southward from the beacon described in (c) above.
(iv.) No. 6 white conical buoy, at a distance of about 3½ cables south-eastward from No. 5 light-beacon.
(v.) No. 7 white conical buoy, at a distance of about 14 cables southward from No. 5 light-beacon.

INDIA.
BAY OF BENGAL.—IRRAWADDY RIVER APPROACH.—BARAGUA FLATS.—WRECK SOUTHWARD OF.
Position.—At a distance of about 6 miles eastward of Baragua Light-vessel. Lat. 15° 27' N., long. 95° 17' 10" E., on Chart No. 823.
Description.—Sunken wreck of a vessel, with masts showing about 3 ft. above water.

MISCELLANEOUS.
(1.) BUOYAGE OF SUNKEN MINES.
Mariners are notified that the positions of sunken mines are sometimes marked by a buoy with a black square mark on the staff. Such buoys are to be avoided and not interfered with.

(2.) DRIFTING AND WATERLOGGED MINES.
Mariners are notified that a small percentage of drifting mines are known to exist in a waterlogged condition, a fraction of which may be dangerous. This type of mine is hard to see, and special precautions are therefore necessary to ensure that a good lookout is kept. The striking of low floating flotsam should be avoided.

ACCURACY OF RADIO BEARINGS.
The reliance that can be placed in bearings furnished by shore radio compass-stations will be governed by the following conditions:—
(a.) When two sets of bearings are received which do not agree, a third set should immediately be requested.
(b.) In thick weather bearings should be requested at least every half-hour.
(c.) Bearings that pass over intervening land or that are tangent to the shore line are not as reliable as those that have a clear sweep over the sea.
(d.) Navigators receiving a set of bearings should immediately investigate the approximate fix indicated and determine whether or not they are being furnished with bearings from the stations that should be most reliable.
(e.) When the position of the ship as indicated by the radio bearings differs materially from the position by dead-reckoning, a second set of radio bearings should be requested in order to check the first radio position.

ADMIRALTY PUBLICATIONS.
METHOD OF REVISION OF NOTICES TO MARINERS.
When Admiralty Notices to Mariners are revised and republished from time to time, new matter and alterations, &c., are indicated in the following manner:—
(1.) Entirely new paragraphs, by a broad line at the side.
(2.) New or altered portions of paragraphs are underlined with a broad line.
(3.) Deleted paragraphs are indicated by a bracket extending right across the page, thus: []
(4.) Deleted portions of paragraphs are indicated by a similar bracket, three-quarters of an inch long, thus: ] [

ADMIRALTY TIDE-TABLES, PART I, 1920.
The Admiralty Tide-tables, Part I, 1920, containing tidal predictions for standard ports of the world, have now been published.
The changes announced in Admiralty Notice to Mariners No. 702 of 1918, and fully described in the Tide-tables for 1919, have been carried out; the predicted times of high and low water are now given in the 24-hour system of time keeping, 0H. being midnight, 12H. noon, times less than 12H. a.m., and times greater than 12H. p.m., the heights of high and low water are given in feet and decimals of a foot, and the tidal differences, formerly given in Part I, have been transferred to Part II. The methods of finding the height of the tide at times between high and low water and the instructions for using the tables have also been revised and improved and several supplementary tables have been added.
The standard ports have been amended as follows:—
(a.) The high-water predictions formerly given for the following port have been discontinued: Wales, Port Talbot.
(b.) Predictions, both high and low water, for the following ports have been added: Wales, Swansea (Mumbles lighthouse); White Sea, Kem (Popov Island); Russia, north coast, Ekaterinskaya; The Netherlands, Vlissingen (Flushing).

Officiating Ministers for 1919.—Notice No. 43.
Registrar-General's Office,
Wellington, 16th December, 1919.
PURSUANT to the provisions of the Marriage Act, 1908, the following names of Officiating Ministers within the meaning of the said Act are published for general information:—
Presbyterian Church of New Zealand.
The Rev. Walter McLean.
Alexander T. Thompson, B.D.
Roman Catholic Church.
The Rev. Eugene Carmine.
William Edward O'Donnell.
Methodist Church of New Zealand.
Mr Reginald Triggs H. Wearne.
Baptists.
The Rev. Harold Garard Goring.
Dunedin Evangelistic Mission.
Mr. Abraham A. Lind.
W. W. COOK,
Registrar-General.