Eastern Archipelago Pilot, part IV : comprising the western end of Java, the southern and eastern coasts of Sumatra, Straat Soenda, Straat Banka, Gaspar Strait, Straat Karimata, the western coast of Borneo from Tanjong Sambar to the entrance of the Kleine Kapoeas Rivier, the Riouw and Lingga Archipel, with the various routes leading to Singapore and the China Sea.