that these forests contained. It was finally proposed that I go with
the launch up to the Branco River, only two days' journey distant, and
that on its return I should disembark and stay as long as I wished. To
this I gladly assented. We departed in the evening bound for the Branco
River. On this trip I had my first attack of fever. I had no warning
of the approaching danger until a chill suddenly came over me on the
first day out from Floresta. I had felt a peculiar drowsiness for
several days, but had paid little attention to it as one generally
feels drowsy and tired in the oppressive heat and humidity. When to
this was added a second chill that shook me from head to foot with such
violence that I thought my last hour had come, I knew I was in for my
first experience of the dreaded Javary fever. There was nothing to do
but to take copious doses of quinine and keep still in my hammock close
to the rail of the boat. The fever soon got strong hold of me and I
alternated between shivering with cold and burning with a temperature
that reached 104 and 105 degrees. Towards midnight it abated somewhat,
but left me so nearly exhausted that I was hardly able to raise my
head to see where we were going. Our boat kept close to the bank so
as to get all possible advantage of the eddying currents.

I was at length aroused from a feverish slumber by being flung suddenly
to the deck of the launch with a violent shock, while men and women
shouted in excitement that the craft would surely turn over. We
were careened at a dangerous angle when I awoke and in my reduced
condition it was not difficult to imagine that a capsize was to be the
result. But with a ripping, rending sound the launch suddenly righted
itself. It developed that we had had a more serious encounter with
a protruding branch than in any of the previous collisions. This one
had caught on the very upright to which my hammock was secured. The
stanchion in this case was iron and its failure to give way had caused