Just a note before you begin. Interesting the ideas of conquering the ‘unknown’, of primitiveness/otherness shown in the silent film.
“In 1913, Theodore Roosevelt and his son Kermit joined Brazilian explorer Cândido Rondon in an expedition to Brazil’s Amazon Rainforest, sponsored by the Brazilian government and the American Museum of Natural History. They explored the recently “discovered” River of Doubt (now named the Roosevelt River) in the Amazon, deep within the interior of the country, in the sparsely populated Rondônia State. The expedition was quite difficult, and Roosevelt nearly died from an infected wound. He published an account of the expedition the following year, entitled Through The Brazilian Wilderness, replete with photographs taken by his son during the trip.” Theodore Roosevelt is on the left.
More Info
Several Pictures – Flickr
Digital Book – World Digital Library
Eyes On Brazil 