The river Maccabu originates in the skirt of the Serra Salvador, little removed from the source of the before-mentioned river St. Pedro. It is serpentine, tranquil, flows principally through a swampy country to the north-east, discharges itself into the lake Feia, and is navigable, without falls, pretty nearly to its origin. The river Imbe, which rises at the base of the above serra, seven miles from the head of the Maccabu, and runs for a considerable space parallel with it, receives near its commencement, by the left bank, three streams, called the Three Rivers of the North, (which have their origin in the situation of Tres Picos, where there is gold,) and traverses the lake of Cima, from whence it flows to the lake Feia, with the name of Ururahi. The bed is winding and the current slow. Large canoes advance up without obstacle, almost to its heads. The above-mentioned Ururahi, (the outlet to the lake of Cima,) the margins of which abound with plantations of the sugar-cane and mandioca, describes a semicircle to the north, approaching the Parahiba, with which an advantageous communication might be opened, by cutting a canal across a plain, not exceeding four miles in width. The lake Feia consists of two unequal parts, united by a narrow channel. The one lies to the north, near twenty miles in length from east to west, and upwards of twelve in width; the other to the south, sixteen miles in length, and only two in width. It is an interesting lake, abounds with fish, and so inconsiderable in depth, that canoes can only proceed by certain channels. The water is fresh and wholesome. It has within its precincts a considerable peninsula, upon the isthmus of which is situated the church of the parish of the Lady of Remedios, and presenting a delightful aspect. The margins of this lake are marshy, and it discharges itself by various channels, which, describing extensive circuits, form many islands, and without which, none of those channels would have made their way to the ocean, in consequence of an extensive, high, and solid sand-bank, formed by the sea. All the channels re-unite at divers points, and form another lake, many leagues in length, with the width of a spacious river, stretching, for its whole extent, along the said sand-bank; across a certain part of which it opens annually an outlet, that presents the appearance of a considerable and furious river, called Furado, at the time the internal receptacles are overflown. The southern or principal of these channels is called Iguassu, or the river Castanheta. This district might be cleared from water, by the introduction of some hydraulic machines, (as in some parts of Lincolnshire), when the grounds would afford pasturage, and become susceptible of cultivation at all times.