334 
APPENDIX. 
A. the centre of the bay, where there is from seven to nine 
Sect. IV. fathoms, mud, and the sea-breeze has free access : but, if 
N. West a more sheltered place is required, such may be found at 
Coast, south-east corner of the bottom of the bay in six and 
seven fathoms, mud. High water at full and change takes 
place in the eastern entrance, at a quarter past nine o’clock ; 
the tide rises about six feet. 
Jar Island is surrounded by rocks, but to the east- 
ward of it thfe channel is twelve fathoms deep. Its summit 
is in latitude 14° 1 ' 10", longitude 126° 15' 40". 
The western side of Vansittart Bay is formed by a peninsula, 
the extremity of which is Cape Bougainville ; the northern 
part of this land is fronted by a reef, that extends round it for 
three miles from the shore, but the western side appeared to 
be of bold approach. The reef commences at Cape Bou- 
gainville, and trends round to Point Gibson, where it termi- 
nates. This part of the coast is fronted by extensive reefs, 
which render the approach to it very dangerous : at sixteen 
miles to the northward of the cape there is a range, the 
Holothuria Banks, that extend in an east and west di- 
rection for twenty-three miles ; their north-east extent was 
not ascertained, but the western end, in latitude 13° 32', and 
longitude 125° 46' 45", is narrow, and not more than five or 
six miles broad. 
There is another range of reefs to the westward of the 
cape, that extends in a north and south direction for upwards 
of twenty miles ; and about from three to five miles broad. 
The water breaks on many parts of it. Its north extre- 
mity, in latitude 13° 41^', is sixteen miles W,|-N. from 
Trough ton Island: in this space the sea is quite clear, and 
from sixteen to twenty fathoms deep. The narrowest part 
of the channel, between the reef and the peninsula, is at 
