367
COMMONWEALTH OF AUSTRALIA,
1918. No. 12.
The Astronomical positions are only approximate unless seconds are given. The bearings are given both True and Magnetic, and those relating to lights are from seaward. The visibility of lights is that in clear weather. Fog signals are sounded only in thick or foggy weather. The cleration given is the height of focal plane above high water.
AUSTRALIA NORTH COAST.
Clarence Strait.
Rooper Rock--Light Buoy to be established.
Mariners and others are hereby notified that a Light Buoy showing a group flashing white light will be established off the Rooper Rock on or about 24th August, 1918.
Position.--The Light Buoy will be mɔɔred in about 10 fathoms of water at a distance Position will be appro- of about 3-mile east-south-east of Rooper Rock. ximately :-
Lat. 12° 04' S.; Long. 131° 11' E. on Chart 1095.
Description. A Cylindrical Light Buoy with framework superstructure painted red and numbered "3," exhibiting a group flashing white light showing two flashes in quick succession every fifteen seconds, thus :-
Eclipse
Flash
! sec.
Eclipse
Flash
LAATA
I sec.
! see. 13 secs.
Power. 1,300 candles.
Visibility.-Eight miles.
Remarks. Further notice will be given.
Charts affected.---
Admiralty Chart No. 1095-Clarence Strait.
"
613-Melville Island and Dundas and Clarence Straits.
"
5)
1044--Groote Eylandt to Cape Ford. 2759a-Australia, Northern portion.
Publications affected.-Australia Pilot, Vol. V., 1914, page 102.
By Direction,
R. McK. OAKLEY, Acting Comptroller-General of Customs.
JOSHUA F. RAMSBOTHAM,
Director of Lighthouses.
Department of Trade and Customs,
MELBOURNE, 12th July, 1918.
COMMONWEALTH OF AUSTRALIA.
1918. No. 13.
The Astronomical positions are only approximate unless seconds are given. The bearings are given both True and Magnetic, and those relating to lights are from seaward. The visibility of lights is that in clear weather. Fog signals are sounded only in thick or foggy weather. The elevation given is the height of focal plane above high water,
AUSTRALIA-NORTH COAST.
Van Diemen Gulf.
Howard Knoll-Light Buoy to be established.
MARINERS and others are hereby notified that a Light Buoy, showing a group flash- ing red light, will be established off Howard Knoll on or about 28th August, 1918.
Position.--The Light Buoy will be moored in about 10 fathoms of water at a dis- tance of about 1 mile North-north-east of Howard Knoll. Position will be approximately :---
Lat. 11° 59' S.; Long. 131° 18' E. on Chart 1095.