The Fuegian Archipelago, at the southern extremity of South America, covers a territory as large as Nebraska. A tortuous, wind-swept labyrinth of waterways separates the hundreds of islands that constitute this group. The largest is Tierra del Fuego, half as large as Illinois. It is divided longitudinally between Chile and Argentina, by far the larger and more valuable portion having been awarded to the former by the Royal Arbitrator. The name was given to the archipelago by Magellan, when he saw the trails of smoke from the signal fires of the natives who followed his epoch-making course through the strait that now bears his name. Very little of the Fuegian country is under cultivation, although thousands of sheep graze over its rich valleys and verdant plains. The southernmost point, Cape Horn (in Chilean territory), is a monster rock, bleak and forbidding, against which the antarctic storms beat with such terrific force that, in the old days of sailing vessels, it was called the headstone of the mariners’ most populous graveyard. A vastly different scene awaits the traveler who penetrates into the tropical wilds of the northern territories of Argentina. Going aboard one of the fine steamers of Nicholas Mihanovitch—the kings of the river traffic—at Buenos Aires, the traveler follows the course of the Paraná, which is the main water highway of Argentina. The trip will take him through the richest provinces of the Camp, past the busy miniature Buenos Aires, the city of Rosario, which is the port of shipment for the grain of this region, and up into the tropical scenery and mystery of the Chaco and Misiones territories, opening up vistas of prodigious natural growths and riotous beauty, differing in every way from the somber majesty of the Fuegian country. The Chaco and the territory of Formosa, adjoining it on the north, are still almost wholly occupied by uncivilized Indians. Up to the present time this region has been exploited chiefly for the wood of the _quebracho_ (_qui-bra-hacha_—axe-breaker) tree, which yields the best quality of tannin and timber for railroad ties; it is richer in the former product than any other tree yet discovered. [Illustration: IGUAZÚ FALLS, WHERE BRAZIL, PARAGUAY, AND ARGENTINA MEET.]