Feb. 26.] THE NEW ZEALAND GAZETTE. 691

(b.) Fog-signal:
Description.—A siren giving one blast of three seconds duration every thirty seconds.

(2.) Tai-kung-tau Light.—Fog-signal established.
Position.—On Tai-kung-tau Lighthouse. Lat. 35° 58′ N., long. 120° 29′ E.
Description.—A siren giving one blast of four seconds duration every fifty seconds.
Variation.—4° W.

PHILIPPINE ISLANDS.
SEBU, WEST COAST.—TANGIL POINT.—LIGHT ESTABLISHED.
Position.—On Tangil Point. Lat. 16° 4′ 30″ N., long. 123° 26′ 40″ E., on Chart No. 2578.
Abridged Description.—Lt. F., red, 32 ft., vis. 7 m.
Characteristics:
Character.—A fixed red light.
Elevation.—32 ft.
Visibility.—7 miles.
Structure.—A white concrete pillar, 29 ft. in height.

JAVA.
NORTH COAST.—SEMARANG BAY.—INFORMATION WITH REGARD TO SHOALS.

1. Existence of shoal:
   Position.—At a distance of 2·2 miles, 14° (N. 13° E. mag.), from Semarang Lighthouse. Lat. 6° 55′ S., long. 110° 24⅜′ E.
   Description.—A 3-fathom shoal, about half a cable in extent.
   Remarks.—A note “Repd. (1919)” is to be placed against this shoal on the charts.
2. Further details with regard to shoal:
   Former Notice.—No. 1318 of 1919.
   Position.—The northern end of the shoal is situated at a distance of 2·3 miles, 333° (N. 25° W. mag.), from Semarang Lighthouse, and not 2·1 miles, 336° (N. 25° W. mag.), from the lighthouse as stated in the former notice.
   Details.—This shoal, which has a least depth of 2⅜ fathoms, extends in a southerly direction for a distance of about 2·7 cables from the above position. The shoal is about 1·4 cables in width. The northern end of the shoal is marked by a white conical buoy with a red horizontal band and ball topmark.
   Variation.—1° E.

SUMATRA, WEST COAST.
(1.) KRU ROAD.—EXISTENCE OF REEFS.
(a.) Position.—At a distance of 3·8 miles, 106° (S. 74° E. mag.), from Pulo Pisang Kru Lighthouse. Lat. 5° 9¼′ S., long. 103° 55′ E.
Depth.—2 fathoms.
(b.) Position (approximate).—At a distance of 4⅜ miles, 158° (S. 22° E. mag.), from Pulo Pisang Kru Lighthouse.
Depth.—2 fathoms.

(2.) KAWUR.—REEFS SOUTH-EASTWARD OF.
(a.) Position.—Lat. 4° 55′ 50″ S., long. 103° 31′ 15″ E., on Chart No. 2761.
Depth.—3 fathoms.
(b.) Position.—Lat. 4° 57′ S., long. 103° 33′ E., on Chart No. 2761.
Depth.—4½ fathoms.
Variation.—Nil.

TASMANIA, NORTH COAST.
TABLE CAPE LIGHT.—INTENDED ALTERATION IN CHARACTERISTICS.
Date of Alteration.—On or about 31st January, 1920.
Position.—On Table Cape. Lat. 40° 57′ S., long. 145° 45¼′ E.
New Abridged Description.—Lt. gp. fl. (2), W.R., ev. 6 secs., 390 ft., vis. 24 and 8 m. (U).
Characteristics:
Character.—The character of the light will be altered from fixed with white and red sectors to group flashing with white and red sectors showing two flashes every six seconds, thus—flash 0·3 sec., eclipse, 1 sec.; flash 0·3 sec., eclipse 4·4 secs.
Visibility.—White light, 24 miles; red light, 8 miles.
Power.—White light, 5,000 candles; red light, 2,000 candles.
Remarks.—The signal-station will be discontinued and the light unwatched; in other respects the light will be unaltered.
Note.—No further notice will be given.

MERSEY BLUFF.—INTENDED ALTERATION IN CHARACTERISTICS OF LIGHT.
Date of Alteration.—On or about 15th January, 1920.
Position.—On Mersey Bluff. Lat. 41° 9′ S., long. 146° 23′ E.
New Abridged Description.—(U) Lt. gp. fl. (4), W.R., ev. 12 secs., 122 ft., vis. 16 and 7 m.
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.
Visibility.—White light, 16 miles; red light, 7 miles.
Power.—White light, 1,500 candles; red light, 600 candles.
Remarks.—The light will be unwatched. The other characteristics of the light will remain unchanged.
Note.—Lloyd’s signal-station at this lighthouse will be discontinued on the above date. No further notice will be given.

SOUTH AUSTRALIA.
ENTRANCE TO THEVENARD HARBOUR.
Masters of vessels, pilots, and others are hereby notified that a channel 150 ft. wide has been dredged, giving a depth at L.W.S.T. of 24 ft. commencing at a point about 4¼ cables E.S.E. of Bird Rock and extending northerly towards Cape Thevenard on a bearing of 6° 45′ (N. 3° 30′ E. mag.). It is marked by four blind piles, unpainted, driven in a straight line about 40 ft. from western edge of cutting and distant from each other about 5 cables.
Approximate position of entrance to the channel: Lat. 32° 11′ S., long. 133° 37′ 40″ E.
This affects Admiralty Chart No. 1061.
Publications affected: “Australia Directory,” Vol. I (1907), pp. 151, 152; and “Australia Pilot,” Vol. I (1918), p. 108.

SPENCER GULF.—PORT BROUGHTON.
Masters of vessels, pilots, and others are hereby informed that on and after the night of 10th December, 1919, an unwatched white “Aga” light, flashing 40 times per minute, and showing over an arc of 90° from 55° 10′ (N. 50° 30′ E. mag.) to 145° 10′ (S. 39° 30′ E. mag.) will be exhibited from an open ironwork tower, painted white, on a timber pile structure placed in 14 ft. at L.W.O.S.T., one cable seaward from the existing No. 1 red beacon, and in line with that beacon and No. 2 red beacon.
The focal plane of the light is 20 ft. above high water, and it should be visible nine miles in clear weather.
Approximate position: Lat. 33° 33¾′ S., long. 137° 52¼′ E.
This affects Admiralty Charts Nos. 404 and 2389, and the survey of Port Broughton dated March, 1914.
Publications affected: “Australia Directory” (1907), Vol. I, page 256; and “Australia Pilot” (1918), Vol. I, page 218.

Notice to Mariners.—No. 5 of 1920.
———
MINE PROTECTION.
———
Marine Department,
Wellington, N.Z., 20th February, 1920.
ADVERTING to Notice to Mariners No. 93 issued by this Department on the 23rd December last, and published in the New Zealand Gazette of the 8th ultimo, the following additional notices issued by the Admiralty are published for general information.
W. H. HERRIES,
Minister of Marine.
———
LETTER TO SHIPPING ASSOCIATIONS, SHIPOWNERS, AND LLOYDS.
Admiralty, S.W., 13th November, 1919.
GENTLEMEN,—I am commanded by My Lords Commissioners of the Admiralty to acquaint you that in Their Lordships’ opinion the few minefields still in existence, and the channels through, or for the avoidance of them, are now sufficiently well defined to admit of the moored-mine danger to Merchant Shipping no longer being considered a matter for Admiralty legislation in the interests of the safety of the ships, their crews and passengers.
2. In these circumstances the Admiralty Order of 28th July, 1919, made under section 37c of the Defence of the Realm Regulations, and promulgated in the London Gazette of 1st August, 1919, and Trade Division Circular of 1st August, 1919, is cancelled as from the date of this letter.
3. My Lords are, however, of opinion that the use of Otters in the areas notified in Mine Warnings to Mariners as containing moored mines, greatly minimises the danger of hitting