Author: Kayser, E., 1884.:
Title: Die Orthocerasschiefer zwischen Balduinstein und Laurenburg an der Lahn.
Description: Jahrb. Preuss. Geol. Landesanst., Jg. 1883: pp. 1-56, many figs. of fossils on 5 (2 fold.) lithogr. pls., 1 fold. col. geol. map. Large 8vo. Plain new wrs.

Keywords: