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Straelen, V. van Resultats Scientifiques du Voyage aux Indes Orientales Neerlandaises de LL.AA.RR. le Prince et la Princesse Leopold de Belgique. Volume I. Introduction. Brussels 1933
Folio, pp.222, 91 plates, 181 text figures. A very good copy in slightly frayed original wrappers.

The complete introductory account of this scientific expedition under the auspices of the Belgian Royal Museum of Natural History which ranged from Sabang to Merauke, illustrated with superb collotype photographs of people, flora and fauna.