From Investigator's Group.] TERRA AUSTRALIS. 127 
the eastern shore. At eight o'clock we found ourselves in a 
bay, whose width, from the outer western point of entrance, Tuesday w. 
named Point Sir Isaac, to the shore on the east side, was near 
three leagues. It extended also far in to the south-south-east ; but 
the depth diminished, in less than half an hour, to 4 fathoms, al- 
though the head of the bay was still six or seven miles distant. We 
were then two miles from the eastern shore, with Point Sir Isaac 
bearing N. 67 0 W. ; and hoping to find deeper water in that direc- 
tion, hauled to the westward ; but coming into 3 fathoms, were 
obliged to tack, and the wind veering round from the sea, we worked 
to windward in the entrance of the bay. 
The situation of Point Sir Isaac is 34 0 27' south, and from ob- 
servations of the moon with stars on each side, in 135* 13' east ; but 
by the time keepers corrected, which I prefer, the longitude is 
135° 10' east. The basis of the point seemed to be granitic, with an 
upper stratum of calcareous rock, much similar to the neighbouring 
isles of the Investigator's Group. Its elevation is inconsiderable, and 
the surface is sandy and barren, as is all the land near it on the 
same side. The large piece of water which it shelters from western 
winds, I named Coffin's Bay, in compliment to the present vice- 
admiral sir Isaac Coffin, Bart. ; who, when resident commissioner at 
Sheerness, had taken so zealous a part in the outfit of the Investigator. 
Coffin's Bay extends four or five leagues to the south-eastward from 
Point Sir Isaac; but I do not think that any stream, more consider- 
able than perhaps a small rill from the back land, falls into it, since 
sandy cliffs and beach were seen nearly all round. On the east side 
of the entrance, the shore rises quickly from the beach to hills of 
considerable height, well covered with wood. The highest of these 
hills I call Mount Greenly : its elevation is between six and eight 
hundred feet, and it stands very near the water side. 
-Many smokes were seen round Coffin's Bay, and also two 
parties of natives, one on each side ; these shores were therefore 
better inhabited than the more western parts of the South Coast ; 
