r. 



CONTENTS, 



CHAPTER XX. 



PAGE. 



The Mouth of the Rio Anaveni— Peak of Uniana 

 —Mission of Attires— Cataract, or Raudal of 

 Mapara— Islets of Surupamana, and Uirapuri - - 1 



CHAPTER XXI. 

 Raudal of Garcita— Mavpures— Cataracts of Quit- 

 tuna— Mouth of the Vichada and Zama— Rock 

 of Aricagua — Siquita 



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 Maypu res— Lower 

 Oroonoko between the Mouth of the Rio Apure 

 and Angostura, the Capital of Spanish Guyana - 5Q2J 



