fore failed in a promise of the kind . . .

The other letter is dated two months later, August 5th. It was written
to Henry, who was visiting in St. Louis or Hannibal at the time, and
introduces the first mention of the South American fever, which now
possessed the writer. Lynch and Herndon had completed their survey of
the upper Amazon, and Lieutenant Herndon's account of the exploration was
being widely read. Poring over the book nights, young Clemens had been
seized with a desire to go to the headwaters of the South American river,
there to collect coca and make a fortune. All his life he was subject to
such impulses as that, and ways and means were not always considered. It
did not occur to him that it would be difficult to get to the Amazon and
still more difficult to ascend the river. It was his nature to see
results with a dazzling largeness that blinded him to the detail of their
achievement. In the "Turning-point" article already mentioned he refers
to this. He says:

That was more than fifty years ago. In all that time my temperament
has not changed by even a shade. I have been punished many and many
a time, and bitterly, for doing things and reflecting afterward, but
these tortures have been of no value to me; I still do the thing
commanded by Circumstance and Temperament, and reflect afterward.
Always violently. When I am reflecting on these occasions, even
deaf persons can hear me think.

In the letter to Henry we see that his resolve was already made, his
plans matured; also that Orion had not as yet been taken into full
confidence.

Ma knows my determination, but even she counsels me to keep it from
Orion. She says I can treat him as I did her when I started to St.
Louis and went to New York--I can start for New York and go to South
America.

He adds that Orion had promised him fifty or one hundred dollars, but
that he does not depend upon it, and will make other arrangements. He
fears obstacles may be put in his way, and he will bring various
influences to bear.

I shall take care that Ma and Orion are plentifully supplied with
South American books: They have Herndon's report now. Ward and the
Dr. and myself will hold a grand consultation to-night at the
office. We have agreed that no more shall be admitted into our
company.

He had enlisted those two adventurers in his enterprise: a Doctor Martin
and the young man, Ward. They were