Illustration: The Discovery of the Great Falls.]

Seating himself on the rock, he awaited his hunters. That night they
camped under a tree near the falls. Morning showed that the river was
one succession of falls and rapids for eighteen miles. Here was indeed a
stoppage to the progress of the boats. Sending back word to Captain
Clark of the discovery of the falls, Lewis had ascended the course of the
cascades to a high hill when he suddenly encountered a herd of a thousand
buffalo. It was near supper-time. Quick as thought, Lewis fired. What
was his amazement to see a huge bear leap from the furze to pounce on the
wounded quarry; and what was Bruin's amazement to see the unusual
spectacle of a thing as small as a man marching out to contest possession
of that quarry? Man and bear reared up to look at each other. Bear had
been master in these regions from time immemorial. Man or beast--which
was to be master now? Lewis had aimed his weapon to fire again, when he
recollected that it was not loaded; and the bear was coming on too fast
for time to recharge. Captain Lewis was a brave man and a dignified man;
but the plain was bare of tree or brush, and the only safety was
inglorious flight. But if he had to retreat, the captain determined that
he _would_ retreat only at a walk. The rip of tearing claws sounded from
behind, and Lewis looked over his shoulder to see the bear at a hulking
gallop, open-mouthed,--and off they went, explorer and exploited, in a
sprinting match of eighty yards, when the grunting roar of pursuer told
pursued that the bear was gaining. Turning short, Lewis plunged into the
river to mid-waist and faced about with his spontoon at the bear's nose.
A sudden turn is an old trick with all Indian hunters; the bear
floundered back on his haunches, reconsidered the sport of hunting this
new animal, man, and whirled right about for the dead buffalo.

[Illustration: Fighting a Grizzly.]

It took the crews from the 15th to the 25th of June to _portage_ past the
Great Falls. Cottonwood trees yielded carriage wheels two feet in
diameter, and the masts of the pirogues made axletrees. On these
wagonettes the canoes were dragged across the _portage_. It was hard,
hot work. Grizzlies prowled round the camp at night, wakening the
exhausted workers. The men actually fell asleep on their feet as they
toiled, and spent half the night double-soling their torn moccasins, for
the cactus already had most