1927-1940 83, 22, 101, 92, 19, 103, 192, 274 p., several figs, pls, maps, tables, 4to (until 1933, later in 8vo), paperbound (one back cover loose). Includes many interesting supplements (= scientific papers), like: Jongmans, Die Kohlenbecken des Karbons und Perms im USSR und Ost-Asien (with 40 pls mostly depicting fossil plants), Jongmans, Die Kohlenfelder von Gross Britanien (208 p.)., etc.
1925 31 p., 4 figs, 14 pls, 4to, printed wrappers. Mededeeling No. 1 van het Geologisch Bureau voor her Nederlandsch Mijngebied. Mainly on fossil plants. With Jongman's signature. Ex library Dr. H.W.J. van Amerom.
1941 viii, 222, 58, 26 p., 81 figs, 4to, paperbound. With library stamp (Zoologisch Museum Amsterdam). At the end are bound in supplements (bijlagen) 7-9. Supplements 1-6 were issued separately and are not present.