1972 [20], 61, [40] p., num. figs, 6 pls, small 4to, paperbound. Ex library Dr. A. Brouwer (with his signature).Includes papers on palaeographic evolution of NW Spain & the glaciation of West Africa, and the following palaeontological papers: Macomber, Simultaneous occurrence of late ordovician brachiopod species in Britain and North America / Babin & Robardet, Quelques paléotaxodontes (Mollusques, Bivalves) de l’Ordovicien supérieur de St. Nicolas de Pierrepont (Normandie) / Chauvel & Le Menn, Echinodermes de l’Ordovicien supérieur de Coat-Carrec, Argol (Bretagne).