Rafts: Indian. natural, of the Orinoco.
Rain: scarcity of, in Araya. frequency of, at Caracas. periodical seasons of. electrical. equatorial. prognostics of. tropical. causes of.
Raleigh, Sir W.: voyages of. expeditions of.
Rambleta, plain of.
Ranges, volcanic.
Rapids: navigation and causes of. of Atures. of Piedra.
Raudal: of Cameji. of Canucari. of Cariven. of Garcita. of Javariveni. of Marimara. of Tobaje.
Raudals, elevation of, see Cataracts.
Raya, Indians.
Reactions, volcanic.