riped. Altered in
appearance by volcanic action; occurs on the Ranges north of Cape
Jervis.

Granite.--Colour, red; found on the west side of Encounter Bay.

Brown Spar.--South point of Cape Jervis.

Sandstone, Old Red.--East coast of St. Vincent's Gulf.

Limestone, Transition.--Colour, blue. East Coast of St. Vincent's Gulf.
Formation near the first inlet. Continuing to the base of the Ranges.

Clay Slate.--Composition of the lower part of the Mount Lofty Range.

Granite.--Fine grained, red; forms the higher parts of the Mount Lofty
Range.

Quartz, with Tourmaline.--Lower parts of the Mount Lofty Range.

Limestone Flustra, and their Corallines, probably tertiary.--From the
mouth of the Sturt, on the coast line, nearly abreast of Mount Lofty.

APPENDIX No. II.

OFFICIAL REPORT TO THE COLONIAL GOVERNMENT.

* * * * *

GOVERNMENT ORDER.

Colonial Secretary's Office, Sydney,
May 10, 1830.

His Excellency the Governor has much satisfaction in publishing the
following report of the proceedings of an expedition undertaken for the
purpose of tracing the course of the river "Morumbidgee," and of
ascertaining whether it communicated with the coast forming the
southern boundary of the colony.

The expedition, which was placed under the direction of Captain Sturt,
of his Majesty's 39th Regiment, commenced its progress down the
"Morumbidgee" on the 7th day of January last, having been occupied
twenty-one days in performing the journey from Sydney.

On the 14th January they entered a new river running from east to west,
now called the "Murray," into which the "Morumbidgee" flows.

After pursuing the course of the "Murray" for several days, the
expedition observed another river (supposed to be that which Captain
Sturt discovered on his former expedition), uniting with the "Murray"
which they examined about five miles above the junction.

The expedition again proceeded down the "Murray," and fell in with
another of its tributaries flowing from the south east, which Captain
Sturt has designated the "Lindesay;" and on the 8th February the
"Murray" was found to enter or form a lake, of from fifty to sixty
miles in length, and from thirty to forty in breadth, lying immediately
to the eastward of gulf St. Vincent, and extending to the southward, to
the shore of "Encounter Bay."

Thus has Captain Sturt added largely, and in a highly important degree,
to the knowledge previously possessed of the interior.