430 



INDEX. 



Negroes of valley of Tuy, i. 485 486, 

 Negro, Rio, the, ii. 202, ii. 322; its 



source, ii. 378,387; tributaries 



of the, ii. 393; oscillations of, 



iii. 11 ; basin of the, iii. 360 

 Neiva, valley of, ii. 315 

 Nettles, see " Medusas" 

 Nueva Barcelona, see " Barcelona" 

 Valencia, see " Valencia " 

 Neveri, river, i. 367, iii. 106 

 New Cadiz ,i. 145 



Grenada, see " Grenada ** 



Spain, see " Mexico " 



Toledo, see "Toledo" 



Niger, sands of the, ii. 165 

 Night in the woods of America, ii. 



162 



Niguator, mountain of, i. 375 

 Nile, crocodiles of the, ii. 179, 180; 



periodical risings of the, iii. 12 

 Niopo, or Indian snuff, ii. 505 

 Nobility of Spanish America, i. 413; 



badge of, i. 414 

 of complexion, i. 415 



Noon, in the tropics, ii. 199 

 Numbers, difficulty of acquiring a 



knowledge of, i. 311 



O. 



Oalr, mngnitude and antiquity of 



the, i. 62 n 

 Observations, astronomical, i. 174, 



175, 350-353, 369, ii. 4, 321, 



409, 493 

 meteorological, i. 435, 



436 

 Obsidian, weapons made of, i. 100; 



varieties of, i. 101 ; origin of, 



103 

 Ocean, temperature of the, i. 15- 



24; currents in the, i. 18, 19, 



phosphoresence of the, see 



"Humboldt's Views of Nature " 



agrial, i. 378 



Ochsenberg, mountain of, ri. 235 n 

 Ocomore, ii. 2 



Oil, obtained from the 



Caripe, i. 258 



of the cocoa nut, i. 291 



of the crocodile, medicinal 



properties of the, ii. 497 



of the manati, ii. 170 



of the turtle egg, ii. 190 ; sale 



of, ii. 192 



Omaguas, province of the, ii. 505 

 Optical illusion, i. 389 

 Orang-otang, the, ii. 2 70 n 

 Orange trees of America, i. 215, ii. 



392 



of Cuba, iii. 170 



of Spain, i. 8 



Orchila, island of, iii. 148; geology 



of, iii. 382 n 



Ordaz, expeditions of, iii. 40-42 

 Orinoco, course of the, ii. 95, 138, 

 174, 329, iii. 18; waters of the, 

 ii. 100, 200, 338; water levels of, 

 ii. 225, 297, 325, iii. 14, 15; navi- 

 gation of, ii. 228, 231, 459, iii. 

 7, 8, 16, 18; junctions of the, ii. 

 174, 429; celebrated bifurcation 

 of the, ii. 425 ; sinuosities of the; 

 ii. 460; breadth of, ii. 196, 218; 

 temperature of, ii. 196, 233, 493, 

 insalubrious winds of the, ii. 315; 

 connection of, with the Amazon, 

 ii. 467; source of, ii. 468, iii. 9, 

 62 ; confluence of, iii. 1 ; periodi- 

 cal swellings of, iii. 11 ; current 

 of, iii. 15; branches of the, iii. 

 16-17; origin of the name, iii. 

 41; ancient name of, iii. 59 j 

 tributary streams of, iii. 55, 56 



accident on the, ii. 194 



aspect of the, from Uru- 



ana, ii. 494 

 coast scenery of the, iii. 



district of the, iii. 64, 65 



great cataracts of the, ii. 



235, 250, 259, 314, 329 

 islands of the, ii. 218, 



220 

 mountains of the, iii. 287 





