1955-1968 pp. 47-88, 751-940, 1987-4075, paperbound (taped number on spines, last four parts with taped spines). Partly unopened copies. Text in German. Library stamps of the Geologisch Bureau Heerlen.In all 24 parts of the Fossilium Catalogus, the last four parts being supplements. Although not complete still an important part of this scarce reference work on fossil ferns.
1968 209 p., paperbound (taped number on spines). Text in German. Library stamps of the Geologisch Bureau Heerlen.
1951 22 p., 3 pls (depicting fossil plants and spores), paperbound. Mededelingen van de Geologische Stichting. Ex library Dr. H.W.J. van Amerom.Includes also a paper on Foraminifera by Voorthuysen (with 2 pls and 1 map).