350 
APPENDIX. 
A. 
Sect. IV. 
N.’West 
Coast, 
Fourteen miles N. 68° W. from tlie summit of Caffarelli 
Island is Brue' Reef, a circular patch of rocks of about a mile 
in diameter ; three miles to the north-east of which we had 
irregular soundings, between thirty-eight and forty-five fa- 
thoms on a rocky bottom. The reef is in 15° 57' S., and 
123° 4' 45" E. 
Six miles south of Caffarelli Island, is a rocky island, 
surrounded by a reef; and eight miles farther are several 
small rocky islands, forming the north extremity of a 
range, which, extending to the S.b.E. for ten miles, form 
the eastern side of Sunday Strait, which is the best, and in 
fact the only safe communication with the deep opening 
between Point Cunningham and the islands to the eastward. 
Between this strait and Point Swan, a distance of eleven 
miles, the space is occupied by a multitude of islands and 
islets, separated from each other by narrow and, probably, by 
deep channels, through which the tide rushes with frightful 
rapidity. Sunday Strait is more than four miles wide, and 
appears to be free from danger. The tide sets through it 
at the rate of four or five miles an hour, and forms strong 
ripplings, which v/ould be, perhaps, dangerous for a boat 
to encounter. The vessel was whirled round several times in 
passing through it ; but a boat, by being able to pull, might 
in a great measure avoid passing through them. 
CYGNET BAY is formed between the islands and Point 
Cunningham ; it is fronted by a bank, over which the least 
water that we found was two fathoms ; within this bank 
there is good anchorage, and near the inlets at the bottom 
of the bay, there is a muddy bottom, with eight and nine fa- 
thoms mud. 
Point Cunningham projects slightly to the eastward ; its 
easternmost extremity is in latitude 16° 39' 20'', and longi- 
