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Excerpt from On Some Phonolites From Velay and the Westerwald: Dissertation for the Degree of Doctor of Philosophy at the University of Leipsic, August 1874 A hurried visit last fall to the volcanic district of Velay in Central France, which unfortunately was much interrupted and curtailed by unfavorable weather, owing to the lateness of the season, gave rise to a microscopic and chemical examination of the phonolite rocks occurring there, which I will preface with a few indications of the geological relations of that neigborhood, which, as it would appear, is not very well known, although so interesting geologically, and possessing such great natural beauties of scenery. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.

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