340 THROUGH THE BRAZILIAN WILDERNESS 



parallels of latitude south and the 59th and 6oth degrees 

 of longitude west from Greenwich. We embarked on it 

 at about latitude 12 i' south, and about longitude 60 

 15' west. After that its entire course lay between the 

 6oth and 6ist degrees of longitude, approaching the latter 

 most closely about latitude 8 15'. The first rapids we 

 encountered were in latitude 11 44', and in uninterrupted 

 succession they continued for about a degree, without a 

 day's complete journey between any two of them. At 11 

 23' the Rio Kermit entered from the left, at 11 22' the 

 Rio Marciano Avila from the right, at n 18' the Taunay 

 from the left, at 10 58' the Cardozo from the right. In 

 10 24' we encountered the first rubber-men. The Rio 

 Branco entered from the left at 9 38'. Our camp at 8 49' 

 was nearly on the boundary between Matto Grosso and 

 Amazonas. The confluence with the Aripuanan, which 

 joined from the right, took place at 7 34'. The entrance 

 into the Madeira was at about 5 20' (this point we did 

 not determine by observation, as it is already on the maps). 

 The stream we had followed down was from the river's 

 highest sources; we had followed its longest course. 



