Dec. 6.] THE NEW ZEALAND GAZETTE. 4459

Description.—A green light.
Charts affected.—No. 1206, Sydney Harbour, Bradley Head to Dawes Point; No. 1069, Port Jackson.

SOUTH-EAST COAST.—GABO ISLAND LIGHT.—ALTERATION IN CHARACTER.

Mariners and others are hereby notified that the character of the light on Gabo Island has been altered from occulting with white and red sectors to group flashing with white and red sectors.

Position.—Lat. 37° 34½′ S., long. 149° 55′ E.

Character.—Group flashing with white and red sectors, showing three flashes in quick succession every nine seconds, thus: Flash ½ sec., eclipse 1 sec.; flash ½ sec., eclipse 1 sec.; flash ½ sec.; eclipse 5½ secs.

Sectors.—Red from 204° (S. 14° W. mag.) to 228° (S. 38° W. mag.); white from 228° (S. 38° W. mag.) to 54° (N. 44° E. mag.); red from 54° (N. 44° E. mag.) to 94° (N. 84° E. mag.); obscured elsewhere.

Power.—White light, 13,000 candles; red light, 5,000 candles.

Remarks.—The light is unwatched, but the signal-station is continued as heretofore. The remaining details of the light are unaltered.

Note.—Notice No. 15 of 1917 is hereby cancelled.

Charts affected.—Admiralty Charts Nos. 3169, Port Phillip to Gabo Island; 1211, Gabo Island to Port Jackson; 1017, Gabo Island to Montagu Island; 2759B, Australia, southern portion; 788, Melbourne to Cape Horn, western sheet.

Publications affected.—“Admiralty List of Lights and Time-signals,” Part VI, 1917, No. 2508; “Australia Directory,” Vol. I, 1907, page 546.

CHINA.

EAST COAST.—APPROACH TO SAMSА INLET.—RAGGED POINT.—ROCK DISCOVERED.

An uncharted rock has been located in the approach to Samsa Inlet, about 150 yards north-eastward of Ragged Point. There is a least depth of 7 ft. over the rock at low-water spring tides.

Approx. position: Lat. 26° 22′ 45″ N., long. 119° 57′ 30″ E.

H.O. Charts 1500, 529, 1305, 3179, 3178, 2556.

H.O. Pub. 124, 1909, page 407.

YANG-TSE-KIANG.—SOUTH CHANNEL ENTRANCE.—WRECK MARKED BY LIGHT-BUOYS.

1. Wreck:

Position (approximate).—At a distance of about 3 miles, south-eastward, from Tungsha light-vessel. Lat. 31° 5′ 30″ N., long. 122° 2′ 8″ E., on Chart No. 1602.

Description.—Sunken wreck on the s.s. “Shaohsing.”

2. Light-buoys:

(a.) Position.—At a distance of 7½ cables, 309° (N. 48° W. mag.), from the above wreck.

Description.—A light buoy painted green, exhibiting an occulting white light every eight seconds, thus: Light 4 secs., eclipse 4 secs.

(b.) Position.—At a distance of 7½ cables, 129° (S. 48° E. mag.), from the above wreck.

Description.—As in (a).

Variation.—3° W.

Charts affected.—No. 1602, Approaches to the Yang-tse-kiang; No. 1199, Kue-shan Islands to the Yang-tse-kiang; No. 2412, Amoy to Nagasaki; No. 1262, Hong Kong to Gulf of Liau-tung.

KYAU-CHAU BAY APPROACH.—NON-EXISTENCE OF BELL BUOYS.

(a.) Position.—At a distance of 3·4 miles, 356° (north mag.), from Tai-kung-tau Lighthouse. Tai-kung-tau Lighthouse, lat. 35° 57½′ N., long. 120° 29¼′ E.

Description.—A red bell buoy.

(b.) Position.—At a distance of 7 miles, 294° (N. 62° W. mag.), from the above-mentioned lighthouse.

Description.—A red bell buoy.

Remarks.—The foregoing bell buoys do not exist, and are to be expunged from the charts.

Variation.—4° W.

Charts affected.—No. 857, Kyau-chau Bay; No. 1255, Kyau-chau Bay to Lai-chau Bay.

Publication.—“China Sea Pilot,” Vol. V, 1912, page 412; Revised Supplement, 1917.

Authority.—Tokyo Notice No. 153 of 1917.

GULF OF ADEN.

PORT OF ADEN.—ALTERATION IN EXAMINATION ANCHORAGE.

Position.—Pinnacle rock, lat. 12° 45½′ N., long. 44° 55¼′ E.

Alteration.—The position of the examination anchorage in the outer harbour has been altered, and the anchorage is now defined as follows:—

C

Limits.

(a.) On the North.—By a line drawn from the summit of Pinnacle rock, in a 70° (N. 71° E. mag.) direction towards Ras Tarshein, for a distance of 9·9 cables.

(b.) On the South.—By a line drawn from the summit of Jezirat Salil, in a 53° (N. 54° E. mag.) direction towards Ras Tarshein, for a distance of 19 cables.

(c.) On the East.—By a line joining the eastern extremities of limits (a) and (b).

Variation.—1° W.

Charts affected.—No. 3660, Aden Harbour; No. 7, Aden Harbour and approaches.

Publication.—“Red Sea, &c., Pilot,” 1909, page 405; Supplement No. 3, 1916.

Authority.—The Lords Commissioners of the Admiralty.

BAY OF BENGAL.

MERGUI ARCHIPELAGO.—MIDDLE ISLAND AND PERFORATED ISLAND.—CAUTION WITH REGARD TO POSITIONS.

Position on Charts.—Middle Island summit, lat. 9° 4′ N., long. 97° 48′ E. Perforated Island summit, lat. 8° 49¾′ N., long. 97° 46¾′ E.

Details.—Middle Island is reported to lie about 1¼ miles eastward, and Perforated Island about 2¼ miles south-eastward, of chartered positions, respectively. A note to the above effect with year date “1917” is to be inserted on the charts.

BURMA, ARAKAN COAST.—ARAKAN RIVER, SOUTHERN APPROACH.—DISCOLOURED WATER REPORTED.

Position.—At a distance of 7½ miles, 237° (S. 57° W. mag.), from Baronga Point. Lat. 19° 44¼′ N., long. 92° 55′ E.

Details.—A patch of water discoloured with mud was observed in the above position.

Caution.—This locality being subject to mud volcanoes, mariners are warned to exercise great care when navigating in the neighbourhood.

Variation.—Nil.

Charts affected.—No. 1369, Mayu River to Kyauk Pyu Harbour; No. 821, Elephant Point to Cheduba Strait; No. 829, Cocanada to Bassein River; No. 70, Bay of Bengal.

Publication.—“Bay of Bengal Pilot,” 1910, pages 342, 82.

Authority.—Bombay Notice No. 107M of 1917.

UNITED STATES.

SMOKE APPARATUS FOR MERCHANT VESSELS.

The Bureau of Ordnance of the Navy Department is having manufactured by the Du Pont Company smoke-boxes suitable for use by merchant vessels as a means of escape from attacking submarines. Merchant vessels desiring to procure these smoke-boxes can obtain them from the Du Pont Company. The cost will be approximately as follows:—

Smoke-funnel .. .. .. each $125·00
Phosphorus .. .. per pound 1·75
Smoke-boxes .. .. .. each 25·00

The smoke-funnel is for the production of smoke on board the vessel, and requires only the fuel for its continued use. The smoke-boxes are for throwing overboard, and once used cannot be recovered.

The Navy Department is preparing to issue smoke-boxes to all vessels carrying armed guards, and has announced as its policy that smoke-producing apparatus for the use of merchant vessels should be available for every vessel desiring to purchase same. It is urged that merchant vessels give prompt and favourable consideration to the desirableness of purchasing smoke-producing apparatus.

The “War Instructions for Merchant Vessels of the United States,” issued by the Navy Department, contains directions for the use of smoke-producing apparatus, and the Bureau of Ordnance of the Navy Department issues a pamphlet dealing with the particular type of smoke-producing apparatus manufactured by the Du Pont Company.

ADMIRALTY PUBLICATIONS.

TIDE TABLES FOR THE YEAR 1918.

Former Notice.—No. 859 of 1917.

The Admiralty Tide Tables, complete edition, have now been published.

The undermentioned alterations have been made in the tables:—

Part I.

(a.) Predictions, both high and low waters, for the following places have been added,—

England, east coast .. .. River Tyne entrance
Scotland, east coast .. .. Invergordon.
British Guiana .. .. Georgetown.

(b.) Low-water predictions for the following place have been added to the high-water predictions formerly given,—

Ireland, south coast .. .. Queenstown.