They are Pontianak, Banjermasin,, Kota Bharu, Pasir, Samarinda, Beru and Bulungan.
This river, of volume varying with the tide and the amount of rainfall, is normally navigable by small steamers and native prahus, of a draught of 4 to 5 ft., for 300 to 400 m., that is to say, from Pontianak up to Sintang, and thence as far as Benut.
The Kapuas valley has so far yielded the largest quantity, and Pontianak is, for diamonds, the principal port of export.
In Sambas, Montrado and some parts of Pontianak, the greater density of the population is due to the greater fertility of the soil, the opening of mines, the navigation and trade plied on the larger rivers, and the concentration of the population at the junctions of rivers, the mouths of rivers and the seats of government.
Of the chief place in the western division, Pontianak has about 9000 inhabitants; Sambas about 8000; Montrado, Mampawa and Landak between 2000 and 4000 each; and in the south and eastern division there are Banjermasin with nearly 50,000 inhabitants; Marabahan, Amuntai, Negara, Samarinda and Tengarung with populations of from 5000 to io,000 inhabitants each.
The Malay chiefs of other districts encouraged immigration from China with a view to developing the mineral resources of their territories, and before long Chinese settlers were to be found in considerable numbers in Sambas, Montrado, Pontianak and elsewhere.
To this day, among the natives of the Malayan Archipelago, men speak of going to Pontianak, to Sambas or to Brunei, as the case may be, but make use of no term which recognizes that these localities are part of a single whole.