The railway system in this part of South America pushes its conquering path westwards, and through Juyjuy--a name of difficult pronunciation for the uninitiated[37]--and beyond we may reach the railways of Bolivia, and so the Andes. But the great thoroughfare of travel is the Trans-Andine Railway, a monumental work of the engineer, which, after many delays, pierced the Andes and gave means of access to Chile and the Pacific coast. We may have reached Rosario by the great highway of the river. The city is the outlet to a rich productive region, and stands on the eastern margin of the great Pampas. Rosario is, in the main, a commercial centre, whence many products of Northern Argentina are embarked on the full-flowing Paraná which washes its quays. Sacks of wheat, bales of hay, cattle and all their products, bags of sugar, maize in large quantities, and _quebracho_ extract, are the principal of these exports. It reflects, or indeed in part gives rise to, the activities of Buenos Ayres, to which it comes second in importance as regards size and commerce. Upon the site of Rosario, until the middle of last century, but a small village stood, founded in 1730, where now the straight cross-streets, in chess-board regularity, of the modern town are laid out, together with a handsome boulevard lined with residences, pleasingly interspersed with turf and trees, and many public buildings. Paraná, which we reach in our further voyage upstream, is also classed as a seaport, notwithstanding that it is more than 600 miles from the open sea. Yonder ferry boats gives access to Santa Fé, on the opposite side of the river, a town of more ancient character, founded by the Spanish in 1573 as a halting-place on the voyage to Asuncion. Paraná stands well above and some distance from the river, and is the capital of the rich province of Entre Rios, over whose territory the agriculturist or economist may well cast a satisfactory glance. The name of this province in English signifies "between the rivers"; descriptive of the region bounded on the one side by the waterway we have ascended, and on the other by the Uruguay River. This is the "Mesopotamia" of Argentina, otherwise known as the "garden of Argentina," from its well-watered and fertile nature, its pastoral and agricultural occupations, its products of fruits and corn, its woods and its mild and healthy climate. Had this province devoted more energy to its better development materially and morally, and less to political conflict and revolutionary strife, its picturesque designation would be more amply justified, but it has ever been one of the most turbulent districts in the Argentine confederation. Now, its prosperity has resulted in more settled conditions. [Illustration: IGUAZU FALLS. Vol. II. To face p. 210.] Our way now lies still farther up this great waterway, to the romantic land of Paraguay, for such this inland country has often been designated.