On Its Sides
Were Many Different Stones; But Its Perpendicular Cliffs Were Of A Dark
Bluish Grey Colour, Shining When
Broken, very heavy, and close grained.
Mount Harris, and Mount Exmouth, are composed of distinct materials, and
in their formation
Bear not the slightest resemblance to each other;
the granite of the former being more allied to the hills to the
south-south-east of it, from which however it is distant at least one
hundred miles, a perfect level filling up the intermediate space. Many
new, and otherwise interesting subjects of the indigenous botany were
discovered on the hills: among which were a species of persoonia, not
previously observed, some xanthorrhaeae or grass trees, and two or three
coast plants. The heteromorphous sterculia of the interior, and some
species of eucalyptus of very stunted growth covered its sides, which
however for a considerable distance were not deficient in grass.
Sandstone
was found in large masses in the rivulet at its base, with pebbles of
various colours, and of species none of which was found on the mount
itself. It was near four o'clock before we returned to the tent, highly
gratified with our excursion.
August 9. - In the course of the day, I again ascended Loadstone Hill,
and repeated the experiments made on Friday, with the same results.
Several different stations on the summit were tried, and the needle was
variously affected; the spot where the phenomenon was first observed
seemed to have the greatest effect on the needle.
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