SAILING DIRECTIONS. 
335 
Point Gibson, where it is more than eight miles wide, and 
in mid-channel about twenty-three fathoms deep. 
Between Cape Bougainville and Cape Voltaire is the 
ADMIRALTY GULF. It is twenty-nine miles wide and 
twenty-two deep, independent of Port Warrender. This 
gulf is thickly strewed with islands and reefs : a group off 
Cape Voltaire was seen by the French, and named by them 
the INSTITUTE ISLANDS, the three principal of which, of 
flat-topped shape, are called Descartes, Fenelon, and Cor- 
neille; besides these the Montesquieu Group, and Pascal 
and Condillac Islands, were distinguished. On the eastern 
side of the gulf, near the shore, are Osborn’s Islands, 
which are high and rocky : the southernmost is remarkable 
for its steep, precipitous form, and for its resemblance to 
Mount Cockburn in Cambridge Gulf. There is also a con- 
spicuous high bluff on the principal island, which appears 
to have been seen by the French. 
A. 
Sect. IV. 
N.lFest 
Coast. 
In the offing is CASSINI ISLAND ; it is rather low and 
level, and surrounded by cliffs and rocky shores : on the 
eastern side are four sandy beaches, which are very much 
frequented by turtle : a reef projects off its north end for a 
mile and a half. The anchorage is good near the island, 
but the water is very deep. The situation of its centre is in 
latitude 13° 55' 5 ", and longitude 125° 42'. 
PORT WARRENDER is an excellent port, and affords 
good anchorage in the bay round Crystal Head, in which a 
vessel is quite land-locked; but equally secure anchorage 
may be had for five miles higher up the port, in from 
four to seven fathoms, mud. It extends for six miles farther, 
but the depth in some parts is not more than two fathoms. 
