Theodore Roosevelt (18581919). Through the Brazilian Wilderness. 1914.
minutes the river received the Rio Kermit from the left. At 11 degrees 22 minutes the Marciano Avila entered it from the right. At 11 degrees 18 minutes the Taunay entered from the left. At 10 degrees 58 minutes the Cardozo entered from the right. At 10 degrees 24 minutes we encountered the first rubber man. The Rio Branco entered from the left at 9 degrees 38 minutes. We camped at 8 degrees 49 minutes or approximately the boundary line between Matto Grosso and Amazonas. The confluence with the upper Aripuanan, which entered from the right, was in 7 degrees 34 minutes. The mouth where it entered the Madeira was in about 5 degrees 30 minutes. The stream we have followed down is that which rises farthest away from the mouth and its general course is almost due north:
My dear Sir, I thank you from my heart for the chance to take part in this great work of exploration.