While most of our fruits belong to the rose family, those of the Amazon come from the myrtle tribe. The delicious flavor, for which our fruits are indebted to centuries of cultivation, is wanting in many of the torrid productions. We prefer the sweetness of Pomona in temperate climes to her savage beauty in the sunny south. It is a curious fact, noticed by Herndon, that nearly all the valuable fruits of the valley are inclosed in hard shells or acid pulps. They also reach a larger size in advancing westward. The common Brazil nut is the product of one of the tallest trees in the forest (Bertholletia excelsa). The fruit is a hard, round shell, resembling a common ball, which contains from twenty to twenty-four nuts. Eighteen months are required for the bud to reach maturity. This tree, says Humboldt, offers the most remarkable example of high organic development. Akin to it is the Sapucaya or "chickens' nuts" (Lecythis sapucaya), whose capsule has a natural lid, and is called "monkey's drinking-cup." The nuts, about a dozen in number, are of irregular shape and much richer than the preceding. But they do not find their way to market, because they drop out of the capsule as soon as ripe, and are devoured by peccaries and monkeys. The most luscious fruit on the Amazon is the atta of Santarem. It has the color, taste, and size of the chirimoya; but the rind, which incloses a rich, custardly pulp, frosted with sugar, is scaled. Next in rank are the melting pine-apples of Pará, and the golden papayas, fully equal to those on the western coast. This is the original home of the cacao. It grows abundantly in the forests of the upper river, and particularly on the banks of the Madeira. The wild nut is smaller but more oily than the cultivated. The Amazon is destined to supply the world with the bulk of chocolate. The aromatic tonka beans (Cumarú) used in flavoring snuff, and the Brazilian nutmegs (Puxiri), inferior to the Ceylon, grow on lofty trees on the Negro and Lower Amazon. The Guaraná beans are the seeds of a trailing plant; from these the Mauhés prepare the great medicine, on the Amazon, for diarrhœa and intermittent fevers. Its active principle, caffeine, is more abundant than in any other substance, amounting to 5.07 per cent.; while black tea contains only 2.13. Coffee, rice, tobacco, and sugar-cane are grown to a limited extent. Rio Negro coffee, if put into the market, would probably eclipse that of Ceará, the best Brazilian. Wild rice grows abundantly on the banks of the rivers and lakes. The cultivated grain is said to yield forty fold. Most of the tobacco comes down from the Marañon and Madeira. It is put up in slender rolls from three to six feet long, tapering at each end, and wound with palm fibre. The sugar-cane is an exotic from Southeastern Asia, but grows well. The first sugar made in the New World was by the Dutch in the island of St. Thomas, 1610. Farina is the principal farinaceous production of Brazil. The mandioca or cassava (Manihot utilissima) from which it is made is supposed to be indigenous, though it is not found wild. It does not grow at a higher altitude than 2000 feet. Life and death are blended in the plant, yet every part is useful. The cattle eat the leaves and stalks, while the roots are ground into pulp, which, when pressed and baked, forms farina, the bread of all classes. The juice is a deadly poison: thirty-five drops were sufficient to kill, in six minutes, a negro convicted of murder; but it deposits a fine sediment of pure starch that is the well-known tapioca; and the juice, when fermented and boiled, forms a drink. On the upper waters grow the celebrated coca, a shrub with small, light-green leaves, having a bitter, aromatic taste. The powdered leaves, mixed with lime, form ypadú. This is to Peruvians what opium is to the Turk, betel to the Malay, and tobacco to the Yankee. Thirty million pounds are annually consumed in South America. It is not, however, an opiate, but a powerful stimulant. With it the Indian will perform prodigies of labor, traveling days without fatigue or food. Von Tschudi considers its moderate consumption wholesome, and instances the fact that one coca-chewer attained the good old age of one hundred and thirty years; but when used to excess it leads to idiocy. The signs of intemperance are an uncertain step, sallow complexion, black-rimmed, deeply-sunken eyes, trembling lips, incoherent speech, and stolid apathy. Coca played an important part in the religious rights of the Incas, and divine honors were paid to it. Even to-day the miners of Peru throw a quid of coca against the hard veins of ore, affirming that it renders them more easily worked; and the Indians sometimes put coca in the mouth of the dead to insure them a welcome in the other world. The alkaloid cocaïne was discovered by Wöhler.

Flowers are nearly confined to the edges of the dense forest, the banks of the rivers and lagunes. There are a greater number of species under the equator, but we have brighter colors in the temperate zone. "There is grandeur and sublimity in the tropical forest (wrote Wallace, after four years of observation), but little of beauty or brilliancy of color." Perhaps the finest example of inflorescence in the world is seen in the Victoria Regia, the magnificent water-lily discovered by Schömberg in 1837. It inhabits the tranquil waters of the shallow lakes which border the Amazon. The leaves are from fifteen to eighteen feet in circumference, and will bear up a child twelve years old; the upper part is dark, glossy green, the under side violet or crimson. The flowers are a foot in diameter, at first pure white, passing, in twenty-four hours, through successive hues from rose to bright red. This queen of water-plants was dedicated to the Queen whose empire is never at once shrouded in night.

[Coca-plant.]

[CHAPTER XX.]

Life within the Great River.— Fishes.— Alligators.— Turtles.— Porpoises and Manatís.