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II.—Beiträge zur Kenntniss der Spongien der Böhmischen Kreideformation.Von Philipp Počta. I. Abtheilung: Hexactinellidæ. Mit 5 litho. Tafeln und 19 fig. im Texte, 1883. II. Abtheilung: Lithistidæ. Mit 2 lith. Tafeln und 26 fig. im Texte, 1884. (Abhandlungen der Königlichen böhm. Gesellschaft der Wissenschaft, VI. Folge, 12 Band.) - Ueber Isolirte Kieselspongiennadeln aus der Böhm. Kreideformation. Von Philipp Počta. Mit 2 Tafeln. (Aus den Sitzungsberichten der k. böhm. Gesellschaft der Wissenschaften. Prag, 1884.) - Contributions to the Knowledge of the Sponges of the Bohemian Chalk-Formation. By Philipp Počta. Part I. Hexactinellidæ. With 3 lithograph plates, and 19 figs. in the text 1883. Part II. Lithistidæ. With 2 lithograph plates, and 26 figs. in the text. 4to. (Memoirs of the Royal Bohemian Science Association. Prague, 1884.) - On Detached Siliceous Sponge Spicules from the Bohemian Chalk-Formation. By Philipp Počta. With 2 plates. 8vo. (From the Sessional Reports of the Royal Bohemian Science Association. Prague, 1884.)
Published online by Cambridge University Press:
01 May 2009
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