Beiträge zur Kenntniss der Palaeozoischen Crinoiden Deutschlands.
1895. Palaeontologische Abhandlungen NF Bd. III, Heft 1.; 116 pp. 29 fig. 10 plts. h.t. incl. 1 fold-out. Orig. wrps. spine taped, plates with moist stain through lower part, some also at the top, text part very good, lg4to. [pictures on web site].