UvA-BC 300.454 - Siboga - laboratorium aan boord van de Siboga, Jozef Willem Huijsmans

Laboratory on the siboga ship. Four members of the expedition's scientific staff: from left to right, j. Versluys, h. F. Nierstrasz, j. W. Huysmans and max weber. Date: between March 1899 and February 1900.