Excerpt from The American Geologist, Vol. 16
Editorial Comment - Daemonelix or What?, 113. - Reconnoissance map of the United States, 113.
Re'veiw of Recent Geological Lite7°ature. - Evolution of Australia, A. C. Gregory, 114. - Portland Cement, a monograph, C. D. Jameson, 115. - Origin and Use of Natural Gas at Manitou, Colorado, wm. Striebly, - Lead and Zinc Deposits of Missouri, arthur winslow and J. D. Robinson, - Oh some Dykes containing Huronite, - On Lawsonite a new rock forming Mineral from the Tiburon Peninsula, Marin some, 119. - Post Laramie Deposits of Colorado, 120. - Etude sul le Metammphisme de contact des roches volcaniques, A lacroix.
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Excerpt from The American Geologist, Vol. 16
Editorial Comment - Daemonelix or What?, 113. - Reconnoissance map of the United States, 113.
Re'veiw of Recent Geological Lite7°ature. - Evolution of Australia, A. C. Gregory, 114. - Portland Cement, a monograph, C. D. Jameson, 115. - Origin and Use of Natural Gas at Manitou, Colorado, wm. Striebly, - Lead and Zinc Deposits of Missouri, arthur winslow and J. D. Robinson, - Oh some Dykes containing Huronite, - On Lawsonite a new rock forming Mineral from the Tiburon Peninsula, Marin some, 119. - Post Laramie Deposits of Colorado, 120. - Etude sul le Metammphisme de contact des roches volcaniques, A lacroix.
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.
Excerpt from The American Geologist, Vol. 16
The discovery and description of this genus by Prof. J. M. Clarke has materially added to our knowledge of the structure and development of the siphon in the Endoceratidæ and thrown a new light upon the affinities of the forms of this group. The endosiphon is absent in the maturer stages of Nanno and probably also in Vaginoceras, and in Sannionites it appears to be present only in a fragmentary form in some species. Prof. Clarke's original specimens in the young of Nanno and that it was in one stage an open tube. This gives a standard by which to judge of the affinities of the genera in the Endoceratidæ and shown clearly that Endoras is the radical from which the genera Sannionites, Nanno and Vaginoceras were derived. Prof. Clarke having generously allowed me to study his types, I have made careful observations upon these interesting fossils. The specimens figured in his plate, figures 5-7, are in my opinion the young of figure 1, as described a full grown siphon of a specimen older obviously than figure 1.
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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Paperback. Zustand: New. Print on Demand. An in-depth exploration of the geological history of the Lake Superior region, this book presents a multifaceted analysis of the area's geological formations. Focusing on the Precambrian era, the author traces the evolution of the region's landscape over billions of years, examining the processes that shaped its unique geological features. The book delves into the complex interplay of tectonic activity, volcanic eruptions, and sedimentary deposition, providing a comprehensive understanding of the region's geological development. Through meticulous research and analysis, the author sheds light on the intricate relationships between the region's rocks, minerals, and fossils, offering a valuable resource for geologists, historians, and anyone interested in the Earth's geological past. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9781330366196_0
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PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LW-9781330366196
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