Paso Paraguayo, the, 250 _Pasto dulce_, 23, 24, 183 _Pasto duro_, 23, 24, 183 _Pasto fuerto_, 23 Patagones, 153, 154 Patagonia, 119-160 Pehuenches, the, 24, 131 Peru, relations with, 28, 29, 49, 51 Peru road, the, 209, 210, 213, 214, 216 Piedra Blanca, 43 Pine forests, 109 Plata, Rio de la, 28, 29, 234, 239 Playa Honda, the, 252, 253 Poma, 56 Poncel, B., 31, 53 Population, growth of, 261-263 Ports, 225 Portuguese, relations with the, 235 Posadas, 111, 116, 242, 248, 249 Potatoes, 205 Pozos del Barca Grande, 253 Protectionism, 93, 94 Puerto Belgrano, 232 Pumpkin, the, 100 _Puna_, the, 37, 38 Puna de Atacama, 47, 48 Punta Arenas, 136 _Quebracho_, the, 23, 96, 103, 256-7 Quebracho Herrado, 26 _Quebradas_, 38, 41, 53 Quetriquile, 151 Quinto, the Rio, 26 Quiroga, 59 Railways, 74, 76, 91, 104, 114, 191, 211, 220-233 Railway tariffs, 226 Rainfall, 21, 38, 39, 71, 72, 80, 120-121, 164 Ranqueles, the, 24, 131 Refrigerators, 143, 187, 188, 209 Repossini, 254 _Represa_, the, 64, 210 Riachucho, 247 Rincones, 180 River-floods, 240, 241, 243 River-traffic, 235-258 Roads, 210-220 Roca, General, 26, 27 Rosario, 92, 164, 171, 173, 191, 215, 221, 239, 245, 253 Rosario de Lerma, 55, 56 Rosas, General, 30, 238 _Saladeros_, 184, 189 Salado, the, 23, 26, 112, 171 Sali, the, 69, 77 _Salitral_, 124, 149 Salt Lakes, the, 24 Salt Road, the, 212 Salta, 29, 32, 33, 38, 46, 48, 51, 59, 70, 214, 218 San Cristobal, 114 San Feliciano, 248 San Javier, 110, 114, 249 San Jose, 116, 134 San Juan, 19, 32, 33, 50, 66, 79, 82 San Lorenzo, 249 San Luis, 33 San Pedro, 78, 289, 250 San Rafael, 80, 81, 82, 172, 177 Sancho, 71 Santa Cruz, the, 120, 121, 122 Santa Fe, 26, 52, 112, 114, 175, 191, 196, 198, 253 Santa Maria, 55, 56, 77 Santiago del Estero, 26, 28, 50, 60, 77, 97, 113 Saw-mills, 106-8 Scrub, the, 22, 96 Seasonal migrations, 266 Selective breeding, 21, 179, 188, 189 Sheep-breeding, 139-144, 183-186 Shipping, 236, 240, 253-259 Sierra de los Llanos, 59-63, 67 Sierra d'Ulapes, 66 Somuncura, 122, 152 Spaniards, the early, 28, 29, 48 Stage-coaches, 210 Straits of Magellan, 129 Sugar-industry, the, 69-79 _Suerte de agua_, the, 85 Tablelands, the alluvial, 17, 37 Tandil, Sierra de, 25, 172, 179, 182, 184, 190 Tannin, 102, 105, 106, 107 Tehuelches, the, 131 Texas fever, 22, 189 Teran, M. J. B., 7 Tercero, the Rio, 211, 213 Tierra del Fuego, 128, 140 Tinogasta, 48 Tobacco, 101 Tobas, the, 24, 26 _Toma_, the, 63 _Tosca_, the, 123, 172, 173, 178 Tostado, 114 Trans-Andean railway, 220, 221, 222 Transhumation, 143, 156-159, 182 Transport, evolution of, 215-220, 228 Travelling, early difficulties of, 211-219, 237-238 _Travesias_, the, 52, 60, 142, 211 Tronador, Mount, 128, 147