Siboga expedition
The Siboga expedition was a Dutch zoological and hydrographic expedition to Indonesia from March 1899 to February 1900.
The leader of the expedition was Max [Carl Wilhelm Weber]. Other members of the crew were his wife Anna Weber-van Bosse, the zoologist and first assistant Jan Versluys, the zoologist and second assistant Hugo Frederik Nierstrasz, the physician A. Schmidt, and the artist Jozef [Willem Huysmans]. Captain Gustaaf Frederik Tydeman was responsible for making hydrographic measurements.