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Excerpt from The Eocene and Lower Oligocene Coral Faunas of the United States: With Descriptions of a Few Doubtfully Cretaceous Species In the winter of 1892, while a student at Harvard University, I began a study of the Eocene corals of the United States, and have continued it, with considerable interruption, during six years. The study Of corals presents peculiar difficulties. The classification depends to a large extent upon minute and Obscure structures that are fre quently destroyed in fossil specimens; and the system of classification, as so many Of the later students of these organisms have pointed out, is thor oughly unsatisfactory, but as yet no good system which can replace the old one has been proposed, although recent investigators have accumulated much valuable data that will probably serve as the foundation fora better and more natural system in the near future. 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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