14 ILLUSTRATIONS 



PLATE FACING PAGE 



X. LORETO : THE RIO PINTO IN THE DRY SEASON . 112 



LA BANDA (SANTIAGO DEL ESTERO) . . .112 



XI. QUEBRACHO TRUNKS LYING AT THE STATIONS . Il6 



XII. YOKE OF CREOLE OXEN USED FOR THE TRANS- 

 PORT OF TIMBER ON THE EASTERN CHACO, OR 

 CHACO OF SANTE FE . . . . 128 



WORKS AT TARTAGAL (EASTERN CHACO) FOR 



MAKING TANNIC ACID 128 



XIII. THE VOLCANO PUNTIAGUDO ..... 142 

 CERCAS ON THE LIMAY (RISING IN LAKE NAHUEL 



HUAPI), NEAR THE CONFLUENCE OF THE 

 TRAFUL . . 142 



XIV. THE PATAGONIAN TABLELAND (NEUQUEN) . . 154 



XV. THE PAMPEAN PLAIN 



TRES ARROYES (BUENOS AIRES PRAIRIE BE- 

 TWEEN THE SIERRA DE TANDIL AND THE 

 SIERRA DE LA VENTANA) .... l66 



TOAY, ON THE CENTRAL PAMPA (590 FEET) . l66 



XVI. THE PAMPEAN PLAIN 



THE RIO BAMBA (IN THE SOUTH OF THE 

 CORDOBA PROVINCE, 5OO FEET ABOVE 

 SEA-LEVEL) 182 



BUENA ESPERANZA (SAN LUIS PROVINCE, I,l66 



FEET ELEVATION) 182 



XVII. THE PAMPEAN PLAIN 



BUENA ESPERANZA (SAN LUIS PROVINCE) . IQ4 

 JUNIN (150 MILES WEST OF BUENOS AIRES, 



^30 FEET ELEVATION) , , ^ 194 



