CONTENTS. 



CHAPTER XX. 



PAGE. 



The Mouth of the Rio Anaveni — Peak of Uniana 

 — Mission of Atures — Cataract, or Raudal of 

 Mapara — Islets of Surupamana, and Uirapuri - - 1 



CHAPTER XXI. 

 Raudal of Garcita — Maypures — Cataracts of Quit- 

 tuna — Mouth of the Vichada and Zama — Rock 

 of Aricagua — Siquita - -- -- -- --119 



CHAPTER XXII. 



San Fernando de Atabapo — San Balthasar — The 

 Rivers Temi and Tuamini — Javita — Portage 

 from the Tuamini to the Rio Negro 195 



NOTES TO BOOK VII. 



A — Remark on the Comparison of Roots in Lan- 

 guages that differ in Grammatical Structure - - 293 



BOOK VIII. 



CHAPTER XXIII. 



The Rio Negro — Limits of Brazil — The Cassiquiare 



— Bifurcation of the Oroonoko ------ 297 



CHAPTER XXIV. 



The Upper Oroonoko, from Esmeralda to the Con- 

 fluence of the Guaviare — Second Passage across 

 the Cataracts of Atures and Maypures*— Lower 

 Oroonoko between the Mouth of the Rio Apure 

 and Angostura, the Capital of Spanish Guyana - 502 



