Thirsty Sound .] 
TERRA AUSTRALIS. 
53 
CHAPTER III. 
Departure from Shoal-water Bay, and anchorage in Thirsty Sound. Mag- 
netical observations. Boat excursion to the nearest Northumberland 
Islands. Remarks on Thirsty Sound. Observations at IV est Hill, 
Broad Sound. Anchorage near Upper Head. Expedition to the 
head of Broad Sound : another round Long Island. Remarks on Broad 
Sound, and the surrounding country. Advantages for a colony. Astro- 
nomical observations, and remarks on the high tides , 
At noon September 4, when the botanical gentlemen returned from 
their excursion to Pine Mount, we made sail out of Shoal -water Bay Saturday 4. 
with a breeze from the eastward. In steering north-west amongst 
the small islands, the soundings were between 9 and 14 fathoms ; 
and nearly the same afterwards, in keeping at three or four miles 
from the coast. I intended to go into Thirsty Sound ; hut not 
reaching it before dark, the anchor was dropped in 8 fathoms, sandy 
bottom, when the top of Pier Head bore west, three miles. In the 
morning we ran into the Sound, and anchored in 6 fathoms, with the Sunday 5. 
points of entrance bearing N. 16° and S. 67° E., one mile. The car- 
penters had for some time been employed in making a sliding keel 
for the Lady Nelson, from the pine logs cut in Port Bowen; and 
being now finished, it was sent on board. 
The botanists landed upon the east shore, preferring the main 
land for their pursuits ; and the launch was sent to haul the seine on 
that side, at a beach a little way up the Sound. I went to the top of 
Pier Head and took bearings of the Northumberland Islands, as also 
of the points and hills of the coast to the east and west ; the most 
essential of them to the connexion of the survey, were as under : 
