ysical outline.
Valleys of excavation.
Extent of that of the Cox.
Quantity of rock removed.
Valley of the Grose.
Wellington Valley.
Limestone caverns.
Description and view of the largest.
Of that containing osseous breccia.
First discovery of bones.
Small cavity and stalagmitic crust.
Teeth found in the floor.
A third cavern.
Breccia on the surface.
Similar caverns in other parts of the country.
At Buree.
At Molong.
Shattered state of the bones.
Important discoveries by Professor Owen.
Gigantic fossil kangaroos.
Macropus atlas.
Macropus titan.
Macropus indeterminate.
Genus Hypsiprymnus, new species, indeterminate.
Genus Phalangista.
Genus Phascolomys.
Ph. mitchellii, a new species.
New Genus Diprotodon.
Dasyurus laniarius, a new species.
General results of Professor Owen's researches.
Age of the breccia considered.
State of the caverns.
Traces of inundation.
Stalagmitic crust.
State of the bones.
Putrefaction had only commenced when first deposited.
Accompanying marks of disruption.
Earthy deposits.
These phenomena compared with other evidence of inundation.
Salt lakes in the interior.
Changes on the seacoast.
Proofs that the coast was once higher above the sea than it is at
present.
Proofs that it was once lower.
And of violent action of the sea.
At Wollongong.
Cape Solander.
Port Jackson.
Broken Bay.
Newcastle.
Tuggerah Beach.
Bass Strait.

GEOLOGICAL SPECIMENS COLLECTED.

As any geological information respecting a country so little known as the
eastern coast of Australia may be acceptable to the public, I venture to
subjoin a few observations on some of the more prominent subjects of my
researches, and I do so with the more confidence because it will appear
how largely I am indebted for the interest they possess to the kindness
of my scientific friends in England.

CONNECTION BETWEEN SOIL AND ROCKS.

During the surveys and expeditions I carefully collected specimens at
every important locality, and I have thus been enabled since my return to
England to mark upon my maps the geological structure of the country. By
this means also I have been able to determine the relative value of the
land in the districts recently explored and to compare it with that of
the country previously known.

By a little attention to the geological structure of Australia we learn
how much the superficial qualities of soil and productions depend upon
it, and where to look for arable spots amid the general ba