Eastern Archipelago pilot : vol 4 comprising the western end of Java, the southern and eastern coasts of Sumatra, Sunda Strait, Selat Bangka, Selat Gelasa, Karimata Strait, the western coast of Borneo from Tandjung Sambar to the entrance of Sungai Kapuas Ketjil, Kepulauan Riouw and Lingga, with the various routes leading to Singapore and the China Sea