1925-1945 ca. 1200 p., num. figs, num. pls, roy 4to bound in hcalf (until 1933), small 4to paperbound (1934-1943). Ex library Dr. H.W.J. van Amerom (several probably ex library Prof. Jongmans). Although not specifically on fossil plants this series contains several interesting papers on fossil botany, and is of interest as Jongmans published many papers in it. The first reports nicely bound in half leather.Includes three original plates (mounted photographs) from Jongman's paper ''Beiträge zur Kenntnis der Karbonflora von niederländisch Neu-Guinea'' published in the 1938-1939 report.
1928 liii, 852 p., num. figs & folded pls, paperbound.