1922-1923 61, 25 p., 6, 8 figs, 3, 1 pls, roy. 4to, disbound (no covers). Unopened copy. Published in: Kungliga Svenska Vetenskapsakedemiens Handlingar.
1985 120 p., 11 figs, 11 pls, paperbound. Published in: Utrecht Micropaleontological Bulletins. Special Publication.