🔖 Excerpt from Annales de la Société Géologique du Nord, Vol. 11: 1883-1884Rouville (de), Doyen de la Faculté des Sciences de Montpellier.Butot. Conservateur au Musée d'histoire naturelle, rue du Chemin de fer. Saint - josse-ten-noode. Bruxelles.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.