Author: Sayn, G.
Title: Les ammonites pyriteuses des marnes Valangiennes du Sud-Est de la France.
Description: Paris, Société Géologique de France, 1901. Large 4to (32.9 x 25.4 cm). 28 pp.; 15 text figures, two phototype plates with tissue-guards and explanatory text leaves. Original printed wrappers. = An excellent monograph by the French palaeontologist Gustave Sayn (1862-1933), with several new species of well-preserved ammonites. Published as the society's Mémoires 9. A supplement was issued in 1907, but is not included. Uncut. Wrappers chipped at edges, the front wrapper detached; otherwise very good, unmarked, clean.

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