BARROIS, CH. ET AL. - Description de la faune Siluro-Dévonienne de Liévin.

1920. Mém. Soc. Géol. Nord Tome VI-II (2me fasc.); pp. 69-230, 11 fig. 8 plts. h.t. with fossils (mostly brachiopods, trilobites and molluscs), 2 fold-out plts. with map & sections, folding-out tables. This is the second part, the first one having been published in 1912. Orig. wrps. with small libr. stamp, backcover just a little worn, otherwise very good, 4to. Rare!