- Jaarboek van het Mijnwezen in Nederlandsch Oost-Indië, 40ste Jrg. 1911, Verh.

1913. Landsdrukkerij, Batavia. 247 pp. few figs. many photoplts. h.t. 10 fold-out plts. at end of volume, 20 fold. maps in separated folder. Orig. boards, attachment backcover with fold. plates a bit shaky, otherwise and contents very good.