MARTIN RATTLER. 145 while higher up it spreads out in some places into sheets of ten miles in width. The Madeira, another tributary, is also a river of the largest size. The Amazon is divided into two branches at its mouth by the island of Marajo, the larger branch being ninety- six miles in width. About two thousand miles from its mouth it is upwards of a mile wide. So great is the force of this flood of water that it flows into the sea unmixed for nearly two hundred miles, The tide affects the river to a distance of about four hundred miles inland, and it is navigable from the sea for a distance of three thousand miles inland. On the north bank of the Amazon there are ranges of low hills, partly bare and partly covered with thickets. These hills vary from three hundred to a thousand feet high, and extend about two hundred miles inland. Beyond them the shores of the river are low and flat for more than two thousand miles, till the spurs of the Andes are reached. During the rainy season the Amazon overflows all its banks, like the Nile, for many hundreds of miles; during which season, as Martin Rattler truly remarked, the natives may be appropriately called aquatic animals. Towns and villages, and plantations belong- ing to Brazilians, foreign settlers, and half-civilized Indians, occur at intervals throughout the whole 10