Keywords: Siboga expedition group portrait in laboratory.jpg nl 1899-09-16 Siboga-expeditie naar Nederlands Oost-Indië onder leiding van Max Wilhelm Carl Weber; Vier leden van de wetenschappelijke staf van de expeditie v l n r H F Nierstrasz J W Huysmans Prof Max Weber en Dr J Versluys en 1899-09-16 Siboga expedition to the Dutch East Indies Expedition led by Max Wilhelm Carl Weber In this photo four members of the expedition's scientific staff are portrayed From left to right H F Nierstrasz J W Huysmans Prof Max Weber and Dr J Versluys 1899-09-16 UvA-BC Expedition Wikipedia unknown photographer PD-Old Photographs of the Siboga Expedition Max Wilhelm Carl Weber Jan Versluys |