FEB. 26.] THE NEW ZEALAND GAZETTE. 689

Notice to Mariners.-No. 4 of 1920.

Marine Department,
Wellington, 17th February, 1920.
THE following Notices to Mariners, which have been received from the Hydrographic Office, London; the Hydrographic Office, Washington; the Minister of State for Communications, Tokyo; and the Harbours Board Offices, Adelaide, are published for general information.
B. W. MILLIER, Acting-Secretary.

NORTH SEA.-ENGLAND EAST COAST.
RIVER THAMES APPROACH.-INTENDED ALTERATIONS IN AIDS TO NAVIGATION.
Date of Alterations.-On or about 23rd November, 1919.
I. Outer Gabbard Light-vessel.-Alteration in Position.
New Position.-At a distance of about 1½ miles eastward from present position. Lat. 51° 59' 30" N., long. 2° 4' 35" E.
Description.-A light-vessel exhibiting a group flashing white light.
Remarks.-The red can buoy shown about 7 cables southward from the present position of the above light-vessel will be withdrawn.
Note.-The name "Outer Gabbard Light-vessel" is to be inserted where necessary in the table of tidal streams.
II. Galloper Light-vessel.-Alteration in Position.
New Position.-At a distance of about 6¾ miles southward from present position. Lat. 51° 43' 00" N., long. 1° 57' 00" E.
Description.-A light-vessel exhibiting a group flashing red light.
Remarks.-The can buoy shown about 3¼ cables southward from present position of the above light-vessel will be withdrawn.
III. North Inner Gabbard.-Light-buoy replaced by Buoy.
Position._Lat. 51° 57½' N., long. 1° 56¼' E.
Details.-The light-buoy in the above position will be replaced by a can buoy painted in red and white chequers with staff and cage topmark.
IV. South Inner Gabbard.-Light-buoy replaced by Buoy.
Position._Lat. 51° 53' N., long. 1° 53¼' E.
Details.-The light-buoy in the above position will be replaced by a can buoy painted in red and white chequers.
V. West Inner Gabbard Buoy.-Alteration in Position.
New Position.-At a distance of about 2 cables northward from present charted position. Lat. 51° 55' 30" N., long. 1° 54' 40" E.
Description.-A can buoy painted in red and white vertical stripes.
Note.-No further notice will be given with regard to the above alterations.
RIVER THAMES APPROACHES.-BUOYS RE-ESTABLISHED.- LIGHT ON LIGHT-BUOY EXTINGUISHED.-WRECK REMOVED.
Former Notice.-No. 1145 of 1919; hereby cancelled.

1. Buoys re-established:
   (a.) Gilman buoy:
   Position.-Lat. 51° 28' 54" N., long. 1° 5' 00" E.
   Description.-A black and white chequered can buoy.
   (b.) S.W. Shingles buoy:
   Position.-Lat. 51° 29' 45" N., long. 1° 12' 20" E.
   Remarks.-North-east Tongue buoy is painted in black and white chequers.
2. Light on West Mouse Light-buoy extinguished:
   Position.-Lat. 51° 32¾' N., long. 1° 1' E.
   Details.-The light on this light-buoy is extinguished, and a note "Extinguished (1919)" is to be placed against it on the charts.
3. Wreck removed:
   Position on Charts.-In Black Deep, between Knock John and Long Sand Shoals. Lat. 51° 33½' N., long. 1° 13¼' E.
   Remarks.-This wreck, together with the buoy formerly marking it, is to be expunged from the charts.
   CROSS SAND LIGHT-VESSEL.-WRECK SOUTH-EASTWARD OF.
   Position (approximate).-At a distance of about 5 miles south-eastward from the charted position of the Cross Sand Light-vessel. Lat. 52° 35' 00" N., long. 2° 2' 00" E.
   Description.-A sunken wreck.
   SIZEWELL GAP.--LIGHT DISCONTINUED.
   Former Notice.-No. 1611 of 1919.
   Position.-Lat. 52° 12½' N., long. 1° 37¼' E.
   Description.-A group flashing white light.
   Remarks.-The above light has been discontinued, and is to be expunged from the charts.
   SPURN POINT.-LIGHT-BUOY EASTWARD OF WITHDRAWN.
   Position.-At a distance of about 17¼ miles eastward from Spurn Point Lighthouse. Lat. 53° 41' N., long. 0° 34½' E.
   Description.-Light-buoy No. 9, formerly exhibiting a group flashing red light.
   Remarks.-The above light-buoy has been withdrawn, and is to be expunged from the charts.
   ENGLAND WEST COAST.-SCILLY ISLES.
   ST. MARY'S SOUND, SPANISH LEDGES.-BUOY REPLACED BY BELL-BUOY.
   Position.-At a distance of about 4¼ cables westward from Peninnis Head. Lat. 49° 53' 58" N., long. 6° 18' 53" W., on Chart No. 883.
   Details.-The black and white chequered buoy has been replaced by a bell-buoy painted in black and white chequers
   ORKNEY ISLANDS.-SOUTH RONALDSAY.
   HOXA HEAD LIGHT.-ALTERATION IN CHARACTER.
   Position.-On Hoxa Head. Lat. 58° 49¼' N., long. 3° 2' W.
   New Abridged Description.-Lt. occ., W.R., ev. 10 secs., 50 ft., vis. 12 m. (U).
   Alteration.-The character of the light has been altered from fixed to occulting every ten seconds with white and red sectors, thus--light 8 secs., eclipse 2 secs.
   Remarks.-The sectors remain unaltered.
   MEDITERRANEAN.
   ITALY, WEST COAST.-PORT TORRE DEL GRECO.-LIGHT ESTABLISHED.
   Position.--At the head of the mole, Port Torre del Greco. Lat. 40° 47' N., long. 14° 21¼' E.
   Abridged Description.-Lt. fl., red, ev. 5 secs., 27 ft., vis. 7 miles.
   Characteristics:
   Character.-A flashing red light every five seconds, thus-- flash ½ sec., eclipse 4½ secs.
   Elevation.--27 ft.
   Visibility.--7 miles.
   Structure.--Iron framework.
   DARDANELLES APPROACH.-IMBROS ISLAND, CAPE KEPHALO LIGHT.-ALTERATION IN CHARACTERISTICS.
   Former Notice.-No. 1806 of 1919.
   Position.--On the extreme of Cape Kephalo. Lat. 40° 9½' N., long. 26° 1¼' E.
   New Abridged Description.--Lt. gp. fl. (3), red, ev. 15 secs., vis. 10 m.
   Alteration.--The character of the light has been altered from group flashing red every twenty seconds to group flashing red showing three flashes every fifteen seconds.
   Visibility.--10 miles.
   Remarks.--No further details are given.
   PORTUGUESE WEST AFRICA.
   PORT ALEXANDER.--LIGHT EXTINGUISHED.
   Position.--On Bateman Point. Lat. 15° 49' S., long. 11° 52' E.
   Description.--A fixed red light.
   Remarks.--The above light has been extinguished, and is to be expunged from the charts.
   AZORES.--FAYAL.
   RIBEIRINHA POINT.--LIGHT ESTABLISHED.
   Position.--On Ribeirinha Point. Lat. 38° 35' 22" N., long. 28° 36' 2" W., on Chart No. 1940.
   Abridged Description.--Lt. gp. fl. (3), ev. 20 secs., 466 ft., vis. 28 m.
   Characteristics:
   Character.--A group flashing white light showing three flashes every twenty seconds.
   Elevation.--466 ft.
   Visibility.--28 miles.
   Structure.--A white square tower, with red lantern; low buildings attached.
   Note.--A note "(Experimental)" is to be placed against this light on the charts and the existing note "Light building 1914 " expunged.
   NEWFOUNDLAND SOUTH COAST.
   BOXEY POINT.--LIGHT ESTABLISHED.
   Position (approximate).--On extremity of Boxey Point and at a distance of 4·7 cables, 158° (S. 6° W. mag.), from