CELEBES -- ABENDANON, E.C. Geologische en geographische doorkruisingen van Midden-Celebes / Voyages géologiques et geographiques a travers la Célèbes centrale. Atlas. 1916. Atlas-vol. only. Lge-fol. Ohcl. portfol. -- W. KAUDERN. Structures and settlements in Central Celebes. (1925). W. 6 maps & 263 figs. Owrps., uncut. (Spine a bit dam.). -- Id. I Celebes Obygder. (1921). 2 vols. Prof. ill. Owrps. (Wrps. a bit worn). -- (4).