Het Pane- en Bila- stroomgebied op het eiland Sumatra (Studien over bataks en batakse landen)

On the rivers Pane and Bila. Rhinos of two species are found both in the plains and on the highest and most inaccessible mountains.

The animals were hunted for their horn (soemboe badak). While the export of these horns was important earlier, this has now almost stopped, first because the animal is only rarely met with nowadays, secondly because the population does not engage in hunting much anymore.