A Manual of Elementary Geology
or, The Ancient Changes of the Earth and its Inhabitants as Illustrated by Geological Monuments
en
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Produced by Julia Miller, Iris Schröder-Gehring and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive/American Libraries.)
Project Gutenberg
Public domain in the USA.