scrub-covered rocky gorge, is a fair-sized rockhole. Breaden and Godfrey
managed to get about two gallons of filth from it; I have swallowed all
kinds of water, but this was really too powerful. Had we been hard
pressed it would undoubtedly have been used, but since we had not long
left water, we discarded this mixture, after trying it on Czar, whose
indignation was great. In the branches of the mulga round the rock-hole I
noticed what I have seen in several other places, viz., stones wedged in
the forks--dozens of stones of all sizes and shapes. I have no knowledge
of their true significance. It may be, and this is merely a guess, that
they indicate the presence of poison in the rock-hole; for by means of a
certain plant which is bruised and thrown into the hole, the water is
given a not actually poisonous but stupefying property. Thus birds or
beasts coming to drink fall senseless and an easy prey to the ambushed
native. This is a common plan in many parts of Australia, and was
described to me by a tame boy from the Murchison. Here, too, were more
little pyramids, similar to those at Empress Spring. Some quaint
black-fellows' custom, but what it signifies even Warri cannot explain.
Breaden has a theory that they point to the next water-hole. This may be,
but, unless for a stranger's benefit, quite unnecessary, as every black
knows his waters; and if for a stranger it is equally peculiar, for his
welcome is usually a bang on the head! It may be that messengers or those
who, wishing to trade from tribe to tribe, get the free passage of the
district, are thus guided on their way. The number of pyramids may
represent so many days' march.

There must have been some open water besides this dirty rock-hole, but
having sufficient for present requirements we did not waste time in
further search, and on September 2nd turned again to the North. On this
course we continued until September 6th, the country showing no change
whatever, which constrained me to say of it, so I find in my diary,