Molengraaff, G. A. F. and W. A. J. M. van Waterschoot van der Gracht — Niederlande. [Interleaved proof copy with many annotations].

Heidelberg, Carl Winter, 1913. Large 8vo (25.6 x 17.2 cm). 98 pp.; 20 text illustrations, being mostly geological maps, and profiles. Interleaved throughout. = Written by two of the foremost geolists of the Netherlands during the first half of the 20th century, and published as Handbuch der Regionalen Geologie. 1. Band, 3. Abteilung. This copy with many additions and suggestions for improvement, and perhaps for a new edition, probably made by another Dutch geologist and geographer, Isaäk Martinus Van der Vlerk (1892-1974). His name in pencil above the drophead title. Van der Vlerk "...was an expert in the stratigraphy of the Dutch East Indies (present-day Indonesia) and the Pleistocene of the Netherlands. Although he also studied larger fossils, his most important work was the classification of stratigraphies based on foraminifera" (Wikipedia). The additions include references up to 1923. The printed text is in German, as customary in pre-WWII Dutch geology, but the annotations are in Dutch. Provenance: on the first interleaf recto a stamp of the Bibliotheek Rijksmuseum van Geologie en Minberalogie with address, in Leiden; on this leaf verso a tiny", circular stamp "Univ. Leiden Bibl.". A unique item.