[1] His journal Krakatau, which was edited in 1884 and 1885 by order of the Governor-General of the Dutch East Indies, is his most known work.
[2] It deals with the eruption of the volcanic island Krakatoa in 1883 and brought volcanology into scientific prominence.
Living in Buitenzorg on Java, he was a direct witness to the eruption.
In the BBC docudrama Krakatoa: The Last Days, he is the protagonist[3] and was portrayed by Kevin McMonagle.
In 1909, he obtained an honorary doctorate of Delft University of Technology.