I collected a quantity of it in a kangaroo skin, but this took a considerable time, because the liquid oozed very slowly.
I would not have taken this trouble were it not that I was pretty certain _I had discovered a spring of crude petroleum_.

Immediately, and by a kind of instinct, it occurred to me that I might make use of this oil as yet another means of impressing the blacks with my magical powers.

I told no one of my discovery--not even Yamba.

First of all I constructed a sort of raft from the branches of trees, thoroughly saturating each branch with the oil.

I also placed a shallow skin reservoir of oil on the upper end of the raft, and concealed it with twigs and leaves.