oncador, i, 364, 369
Rio S. Florencio, ii, 268
Rio S. Lourenco, i, 341, 349
Rio S. Lourenco, headwaters of, i, 323
Rio S. Manoel or Tres Barras, i, 403
Rio S. Thome, ii, 268
Rio Secundury, ii, 269, 328, 333, 349, 351
Rio Sumidoro, ii, 53
Rio Tapajoz, ii, 269
Rio Tarma, ii, 452
Rio Trombetas, ii, 399
Rio Uruguatos, ii, 218
Rio Verde, i, 403
Rio Vermelho, i, 109, 133
Rio Xingu, i, 403; ii, 127
Rio Xingu, nearest point to Rio Tapajoz, ii, 379
Rio de Janeiro, i, 9
Rock carvings, i, 338
Rodadeiro or toboggan slide of the Incas, ii, 467
Rodriguez, Jose Carlos, i, 7
Rondon, Col., i, 12
Ross, Mr., ii, 391
"Round Table" of the Incas, the, ii, 467
Royal Mail Steamship Co., i, 9; ii, 476
Rubber, i, 36; ii, 4, 46, 48, 60, 63, 78, 91, 97, 267, 272, 369, 434
Rubber, coagulation of the latex, ii, 8
Rubber, collection of the latex, ii, 6
Rubber, collectors, i, 424; ii, 1

S. Antonio, i, 88
S. Benedicto, Mt., ii, 274, 367
S. Isabel (Castanho), ii, 373
S. Jeronimo, ii, 429
S. Luiz de Caceres, i, 419, 429
S. Luiz de Shuaro, ii, 449
S. Manoel, Collectoria of, ii, 264
S. Manoel, Tres Barras or Paranatinga River, ii, 263
S. Paulo, i, 16
S. Paulo, elevation of, i, 23
S. Paulo, State of, i, 20, 22
S. Ramon, ii, 451
Salesian Friars, i, 132, 264, 280, 284, 309
Salto Benjamin, i, 342
Salto Floriano Peixoto, i, 342
Sand-dunes, ii, 459
Santarem, ii, 385
Santarem to Belem (Para), ii, 385-391
Sauba Ants (_Oecodonia cephalotes_), ii, 119, 315, 318-320
Schmidt, Col. (The Coffee King), i, 37
Schnoor, Luiz, i, 56
Seringueiros, or rubber collectors, the, i, 424;
ii, 1, 22, 250, 258, 272, 273, 276, 361, 369, 371, 379, 411, 428
Serra Azul, the, i, 399-405, 411
Serra das Pedra, i, 405
Serra de Almerin, ii, 387
Serra de Callos, i, 70, 74
Serra de Pasco, ii, 435
Serra de Sta. Rita (or Dourada), i, 96
Serra do Sappe, i, 77
Serra do Tombador, i, 419, 429
Sete Lagoas, i, 413-415, 416
Sillistayni towers, ii, 471
Siphonia elastica (_Hevea Brasiliensis_), or rubber trees, i, 429;
ii, 4, 60, 63, 78, 91, 97, 249
Slavery, i, 423; ii, 11, 19, 22, 40
Snakes, i, 93; ii, 162, 180
Snakes of Brazil (Appendix), 485
Solimoes River, ii, 416-418, 421
Sorveira (milk trees), ii,