<b>1884 - 1885 Boma [Congo]</b> + 5.12.1897. Explorer. Joined a mission of exploration to the Lower Congo under the auspices of the "Institut National de Géographie" from March 1884 to October 1885. Using Boma as his base, Zintgraaf explored the two banks of the Congo river in their anthropological and zoological aspects. He arrived back in Brussels on 9.11.1885 "with a magnificent set of photographs and casts".