green leaf were boiled in eight quarts of water for half an hour, then
strained and evaporated nearly to dryness. The mass was then submitted to
a red heat for half an hour. The residuum was next digested in one pint
of water, filtered, and again evaporated to six ounces. It was then
exposed to the sun's rays, which completed the desiccation; crystals of a
cubic shape having previously been formed."]

10TH FEBRUARY.--This morning the natives caught, in a hollow tree, an
animal apparently of the same genus as the DIPUS MITCHELLII, and which
seemed to live solely on vegetables. The barometer had fallen three
millimetres last evening, and by noon this day it had declined three
more. A fresh breeze blew from N. N. E., and at 2 P.M. a dark thunder
cloud came from the S. S. W. and passed over the camp. The thunder was
very loud, the lightning close and vivid; the wind for some time high,
and rain heavy. The sky was, however, clear by 4 P.M., except in the N.
E. where the thunder continued. Thermometer at sunrise, 75°.

11TH FEBRUARY.--The real "Duck Creek" was still to the northeastward of
our camp, as Mr. Kennedy had ascertained when on the Macquarie. I hoped
to find in it water sufficient at least to serve the party halting on it
one night, on its way to the Macquarie, by which line alone I was now
convinced water enough might be obtained to supply the party until it
could arrive at the Darling; I therefore rode this day to examine it,
with the elder native. I followed the bearing of N. N. E. from our camp,
a direction in which it was likely to be met with, so as equally to
divide the journey of the drays to the Macquarie, into two days. I
crossed plains covered with luxuriant crops of very rich grass, and at
length obtained a sight of Mount Foster bearing east. I reached Duck
Creek (that of Sturt), or the "Marra" of the natives, ascertained by the
bearing of Mount Foster, the native name of which is Narrab. I examined