Enumeration of Fossils Collected in the Niagara Limestone at Chicago, Illinois: With Descriptions of Several New Species (Classic Reprint) - Hardcover

Winchell, Alexander

9780666083289: Enumeration of Fossils Collected in the Niagara Limestone at Chicago, Illinois: With Descriptions of Several New Species (Classic Reprint)

Hardcover

ISBN 10: 0666083282 ISBN 13: 9780666083289

Verlag: Forgotten Books, 2018

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Excerpt from Enumeration of Fossils Collected in the Niagara Limestone at Chicago, Illinois: With Descriptions of Several New Species

Polypary consisting of a mass of crowded cylindrical tubes arranged in ramose and folia ceous forms, both forms being sometimes united in one specimen. The earlier growth, in one Of our specimens, is explanate. The cells are elongated, obliquely horizontal, crowded, overlapping, with their mouths Opening obliquely through the epitheca. The frond devel ops into an irregularly undulate form, sometimes dividing, and some of the lobes bending round laterally, after the manner of one or two turns of an Archimedes. From the border of the frond arise terete, bifurcating branches, with the mouths Opening on all sides. All the cell-mouths are somewhat crescentiform, the outer lip often slightly indented, and some times sufficiently so to give the mouth a triangular outline.

In exfoliated, weathered specimens, the cells are seen to be cylindrical and separately walled, but closely in contact. The width of three of these cells occupies the space of one tenth of an inch; their length is about a third of an inch. No evidences of septa or la mellac can be detected.

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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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Excerpt from Enumeration of Fossils Collected in the Niagara Limestone at Chicago, Illinois: With Descriptions of Several New Species

We do not intend to be understood by what is stated above, of the upper and lower portions of the exposure, that in our Opinion we recognize here the line of demarcation between two stages of the formation, not considering our data sufficient to justify a con elusion on this point.

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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