Spencer's Gulph.] TERRA AUSTRALIA ] 
each of the other isles composing this group. The main coast ex- 180<2 - 
March. 
tended northward from Point Bolingbroke, but the furthest part Sunday 
visible from the top of Kirkby Island was not more than four or five 
leagues distant; its bearing and those of the objects most important 
to the connection of the survey were these ; 
Main coast, furthest extreme, - N. 13 0 40' E. 
Point Bolingbroke, - - - - N. 86 50 W. 
Stamford Hill, station on the north end, - S. 45 17 W. 
Thistle's Island, centre of the high land, - - S. 5 37 W. 
Sibsey Island, extremes, S. i6°27'to 13 2 W. 
Stickney Island, - - - - S. 18 30 to 22 40 E. 
Spilsby Island, - - - - S. 39 30 to 48 25 E. 
Granite forms the basis of Kirkby Island, as it does of the 
neighbouring parts of the continent before examined ; and it is in the 
same manner covered with a stratum of calcareous rock. The island 
was destitute of wood, and almost of shrubs ; and although there 
were marks of its having been frequented by geese, none of the birds 
were seen, nor any other species of animal except a few hair seals 
upon the shore. This description, unfavourable as it is, seemed appli- 
cable to all the group, with the exception of Reevesby and Spilsby 
Islands, which are higher and of greater extent, and probably some- 
what more productive. 
The latitude of the north side of Kirkby Island, observed from 
an artificial horizon, was 34 0 33' 1" south, and longitude by time 
keepers, 136 0 10' 8" east. The variation from azimuths taken on 
board the ship at anchor, with the head south-by-west (magnetic as 
usual), was 2° 40' east ; which corrected to the meridian, would be 
2 0 2' east, the same nearly as was observed in Memory Cove, and at 
the entrance of Port Lincoln ; but an amplitude taken on shore with 
the surveying theodolite, gave 3 0 57' east. This seemed extraor- 
dinary when, except at Point Donington, no local attraction of im- 
portance had been found in the shores of Port Lincoln, where the stom 
is the same. It was however corroborated by the bearings ; for that 0 
