er is more than 200 feet in height, and lies about 5 miles to
the N.N.W. of Mount Harris. From the summit of both, Arbuthnot's range is
visible, bearing nearly due east, distant 70 miles. [See page 28.]

Quartz Rock varieties--Slaty Quartz varieties.--Composition of the first
elevations to the Westward of the marshes of the Macquarie, called
New Year's Range, a group of five hills. The loftiest about 200 feet in
elevation; distant about 80 miles to the N.W. of Mount Harris.

Granite.--Colour red, coarse-grained. Composed of Quartz, Feldspar,
and Mica.

Granite, Porphyritic.--Colour light red. Both occurring in the bed of
New Year's Creek, traversing it obliquely, and are visible for a few
hundred yards only. This granite occurs about 16 miles from the Range in
a N. by E. direction.

Old Red Sandstone.--Composition of Oxley's Table Land, 500 feet above the
level of the plains. It is broken into two hills, that appear to have been
separated by some convulsion. [See page 81.] It bears N.W. by W. from
New Year's Range, distant 50 miles.

Old Red Sandstone.--Composition of D'Urban's group. The highest elevation
ascended during the expedition, being nearly 600 feet above the level of
the plain in which it rises. It lies to the S.S.W. of Oxley's Table Land,
distant 40 miles, and the rock of which it is composed is much harder
and closer.

Breccia.--Colour pale yellow, silicious cement. Composition of some
trifling elevations to the North of New-Year's range, with which it is
doubtful whether they are connected.

Crystallized Sulphate of Lime.--Found imbedded in the alluvial soil
forming the banks of the Darling river. Occurring in a regular vein. Soft,
yielding to the nail; not acted on by acids.--See Plate.

Breccia.--Pale ochre colour, silicious cement, extremely hard. Cellular,
and sharp edges to the fractured pebbles. Has apparently undergone fusion.
Occurs in the bed of the Darling in one place only.

Sandstone Varieties.--Colour dull red and muddy white; appears like burnt
bricks; light, easily frangible; adheres to the tongue; occurs in large
masses in the bed of the Darling; probably in connection with the
rock-salt of the neighbourhood, which, from the number of brine springs
discovered feeding the river, must necessarily exist.

Variety of the same description of rock.

Jasper and Quartz.--Showing itself above the surface of a plain, from
which D'Urban's group bore S. 40 E. distant 33 miles.

It is a r