Author: Pocta, P.
Title: Beiträge zur Kenntniss der Spongien der Böhmischen Kreideformation. I. Abtheilung: Hexactinellidae. [AND] II. Abtheilung: Lithisthidae.
Description: Prag, Königliche Böhmische Gesellschaft der Wissenschaften, 1883-1884. Two papers in one. 4to (28.0 x 22.0cm). 90 pp. [45; 45]; five [3; 2] lithographed plates, 45 [19; 26] text engravings. Near contemporary half cloth over marbled boards. = Two rarely seen monographs of great taxonomical importance. Well-illustrated and including new species. Written by the Czech palaeontologist Filip or Philippe Pocta (1859-1924), successor of Joachim Barrande as a professor at the university of Karlovy Vary. Published in the society's Abhandlungen. Small stamp in top margin of first title; slight toning, otherwise very good, clean.

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