UROLOGICAL FEATURES. 
XXXIX 
and immediately to the S. W. of it, an open 
forest country of granite base extends for many 
miles, on which the eucalyptus manifera is pre- 
valent, and which affords the best grazing tracts 
in Argyle. At Goulburn Plains, however, a 
vein of limestone occurs, which is evidently con- 
nected with that forming the Shoal Haven Gully, 
which is perhaps the most remarkable geological 
feature in the colony of New South Wales. It 
is a deep chasm of about a quarter of a mile in 
breadth, and 1 200 feet in depth. The country 
on either side is perfectly level, so much so that 
the traveller approaches almost to its very brink 
before he is aware of his being near so singular 
an abyss. A small rivulet flows through the 
Gully, and discharges itself into the sea at Shoal 
Haven ; but this river is hardly perceptible, from 
the summit of the cliffs forming the sides of the 
Gully, which are of the boldest and most preci- 
pitous character. The ground on the summit is 
full of caves of great depth, but there has been 
a difficulty in examining them, in consequence 
of the violent wind that rushes up them, and ex- 
tinguishes every torch. 
The open and grassy forests of Argyle are ter- 
