Quelques recherches sur le volcanisme aux volcans de Java (quatrième partie).
1909. Reprint: Genève, Archives des Sciences T. XXXVII; 38 pp. 1 plt. h.t. with 6 phot. folding-out. Orig. wrps. with libr. stamp & ticket, contents very good.
1902. Reprint Samml. Geol. Reichs-Mus. Leiden (I) VII-1; pp. 29-207, 4 plts. h.t. 1 plt. with map folding-out. Comes with 4 pp. Nachtrag. Orig. wrps. w. libr. stamp and minor traces of use, spine repaired with paper tape, contents very good.
1939. Reprint Verh. Geol.-Mijnb. Gen. Ned. & Kol. Geol. Ser. XII; pp. 135-257, few figs. 10 plts. h.t. Orig. wrps. libr. stamp in corner of front cover, very good, 4to.
On the gravity field of the Sunda region (West Indonesia).
1954. Geologie en Mijnbouw NS 16; pp. 271-300, 16 fig. incl. 3 plts. h.t. folding-out. Comes with 4 pages Postscript from a later issue, same journal. Orig. extract, stapled, very good.
Eenige mededelingen en beschouwingen naar aanleiding van een onderzoek aan den kraterwand van den Kloet in Mei 1907.
1908, Jaarb. Mijnw. Ned. Oost-Indië 36 (1907); pp. 185-233, plts. w. 15 pasted in photoplts. 4 fold. plts. h.t. Contains also: verslag van het Mijnwezen 1906-07 : pp. 1-185. In complete issue, spine worn, but contents very good.