I read this book a while back, and thought it was pretty good. Its an account of this guys trip to the Amazon back in the 1890's.
I found a website that has the whole book(I think) on it.
I checked it out from the library.
http://etext.lib.virginia.edu/toc/moden ... dHead.html
I think that if you like the adventure travel, and exploration books, you will like this one.
anyway you can have a read at the web site and decide.