1942. Danm. Geol. Unders. IIR. Nr. 69. 137 pp. (extensive english summary), 6 figs. 3 fold. maps & booklet with tables in pocket. Orig. wrps. very good.
Scandinavian indicator-boulders in the Quaternary deposits. Extension and distribution.
1909. Danm. geol. Und. (II) 23; 153 pp. 4 plts. h.t. with col. maps folding-out. Orig. wrps with libr. ticket, margins of wrappers a bit worn, spine repaired with cloth tape, covers not very nice, contents very good.