The produce and manufactures of the country are conveyed from one district to another and to these maritime capitals, either by water or land carriage. The principal navigable rivers to the westward, are those which disembogue themselves below _Táng'ran_, _Kráwang_, and _Indramáyu_, and the produce brought down by them is usually conveyed to Batavia. To the eastward, the great _Sólo_ river, which is navigable from _Súra-kérta_, affords, with the _Kedíri_, the principal and only outlets from the native provinces by water towards the northern coast. Down the former, which empties itself by several mouths, near _Grésik_, into the great harbour of _Surabáya_, during the rains, large quantities of the produce of the richest provinces of the interior are conveyed. The boats employed, which are of considerable burthen, return with cargoes of salt. This river runs through many valuable teak forests, and consequently affords the means of easy transport for the timber; an advantage which is also derived from several smaller rivers on the northern coast, particularly in the neighbourhood of the principal building yards. Facilities of the same kind are also found at most of the sea ports, which are generally seated on rivers passing through forests in the interior, down which timber required for house-building and the construction of small craft is floated with ease. An inland navigation is carried on to a considerable extent, by means of small canals, in _Demák_ and some of the neighbouring districts, where it is common, even during the harvest, at the driest season of the year, to observe innumerable boats with their light sails crossing an extensive, flat, and highly cultivated country and traversing the corn-fields in various directions. In the rich and fertile delta of _Surabáya_, the whole produce of the adjacent country is conveyed by water carriage, generally on light rafts constructed of a few stems of the plantain tree. Goods not conveyed by water carriage, are usually carried on the backs of oxen or horses, or on the shoulders of men and women, carts not being generally used, except in the western districts, where the population is thin, or in some of the more eastern districts, particularly those recently under Chinese direction. The cart of the western districts, termed _pedáti_, is of clumsy construction, running on two large solid wheels, from five to six feet in diameter, and from one to two inches broad, on a revolving axle, and drawn by two buffaloes. It is the ordinary conveyance of goods to the capital, within a range of about sixty miles from Batavia.