ANNOTATIONS AND ADDITIONS. 241 



ralda is directed from South-east to North-west ; my estima- 

 tions of latitude for the mouths of the Padamo and the 

 Gehette appearing to be respectively 19 and 36' too small. 

 Robert Schomburgk supposes the sources of the Orinoco to 

 be in lat, 2.30' (S. 460) ; and the fine " Map of Guayana, 

 to illustrate the route of E. H. Schomburgk/' which accom- 

 panies the splendid English work entitled " Views in the 

 Interior of Guiana/' places the sources of the Orinoco in 

 67.18' (W. from Paris), i. e. 1.6' west of Esmeralda, and 

 only 48' of longitude nearer to the Atlantic than I had 

 thought admissible. Erom astronomical combinations 

 Schomburgk has placed the mountain of Maravaca, which 

 is upwards of nine thousand feet high, in lat. 3.41' and 

 long. 65. 38' Near the mouth of the Padamo or Paramu 

 the Orinoco was scarcely three hundred yards wide ; and 

 more to the west, where it spreads to a breadth of from four to 

 six hundred yards, it was so shallow and so full of sand- 

 banks that the Expedition were obliged to dig channels, the 

 river bed being only fifteen inches deep. Eresh water 

 Dolphins were still to be seen everywhere in large numbers ; 

 a phenomenon which the zoologists of the 18th century 

 would not have been prepared to expect in the Orinoco and 

 the Ganges. 



( 7 ) p. 213. " The most vigorous of the productions 

 of the tropical world." 



The Bertholletia excelsa (Juvia), of the family of Myrtaceae 

 (and placed in Richard Schomburgk' s proposed division of 

 Lecythidese), was first described by Bonpland and myself in 



VOL I. E 



