Bulletin No; 1 of the Illinois State Museum of Natural History

Bulletin No; 1 of the Illinois State Museum of Natural History
Title Bulletin No; 1 of the Illinois State Museum of Natural History PDF eBook
Author
Publisher Forgotten Books
Pages 52
Release 2015-07-27
Genre Science
ISBN 9781332004522

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Excerpt from Bulletin No; 1 of the Illinois State Museum of Natural History: Springfield, Illinois, February, 1882 For the use of a part of the crinoids described in the following pages, I am indebted to the liberality of Mr. L. A. Cox, of Keokuk, Iowa, who, by his zeal and indefatigable industry as a collector, has brought together one of the finest collections of these beautiful fossils ever obtained from the Keokuk limestone, and he has also been so fortunate as to obtain a large number of specimens from a higher horizon in the Keokuk group, than that from which most of the crinoids peculiar to this formation had previously been obtained. In the winter of 1879, a few finely preserved crinoids were found by Mr. Cox and Mr. Anderson, of Keokuk, in loose pieces of sandy shale at the foot of the bluff about a mile below the city, which had evidently fallen down from above, and an ineffectual attempt was at once made to discover the exact horizon from which the shaly fragments had come. On a subsequent visit by Mr. and Mrs. Cox to the locality, the latter, who is also an excellent collector, succeeded in locating the exact spot from which the crinoids had come, and in finding the fossils in situ. By quarrying into the bluff at the right point, some four or five hundred specimens have been obtained by different collectors who have visited the locality, all secured from a surface scarcely more than six feet square, and from a stratum, only a few inches in thickness, situated near the dividing line between the geodiferous shales of the Keokuk group, and the overlying Warsaw beds. In 1880 another discovery of fossil crinoids was made by Mr. N. K. Burket, of Keokuk, in the Keokuk limestone at Hamilton, Illinois. This was in a different geological level from that just described, and it has not afforded as large a number of specimens as the other, but many of them are remarkable for their large size and fine state of preservation. Moreover, they are generally specifically distinct from those obtained in the sandy shale, and many of the species found here are common in the Keokuk limestone at other localities. Mr. Burket and Mr. Cox worked this locality jointly, and in a surface of about 8 to 10 feet square they obtained from 175 to 200 crinoids, many of them with the arms attached. They were all obtained from a cherty layer some three or four inches in thickness, intercalated in the upper part of the Keokuk quarry-rock, some five or six feet below the base of the geodiferous shales, and some forty feet below the sandy shales that were so prolific in similar forms on the Iowa side of the river. 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.

Report on the Illinois State Museum of Natural History, at Springfield, Illinois

Report on the Illinois State Museum of Natural History, at Springfield, Illinois
Title Report on the Illinois State Museum of Natural History, at Springfield, Illinois PDF eBook
Author Illinois State Museum of Natural History, Springfield
Publisher
Pages 580
Release 1912
Genre
ISBN

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Biennial Report on the Illinois State Museum of Natural History

Biennial Report on the Illinois State Museum of Natural History
Title Biennial Report on the Illinois State Museum of Natural History PDF eBook
Author Illinois State Museum
Publisher
Pages 76
Release 1917
Genre
ISBN

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"Catalogue of the Library of the Illinois State Museum of Natural History": Report for 1909/10.

Bulletin

Bulletin
Title Bulletin PDF eBook
Author
Publisher
Pages 766
Release 1909
Genre Science
ISBN

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Bulletin of the Illinois State Museum of Natural History: 1;

Bulletin of the Illinois State Museum of Natural History: 1;
Title Bulletin of the Illinois State Museum of Natural History: 1; PDF eBook
Author Illinois State Museum
Publisher Palala Press
Pages 50
Release 2018-03
Genre History
ISBN 9781378821213

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BULLETIN OF THE ILLINOIS STATE

BULLETIN OF THE ILLINOIS STATE
Title BULLETIN OF THE ILLINOIS STATE PDF eBook
Author Illinois State Museum
Publisher
Pages 54
Release 2016-08-25
Genre History
ISBN 9781361598764

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Report on the Progress and Condition of the Illinois State Museum of Natural History

Report on the Progress and Condition of the Illinois State Museum of Natural History
Title Report on the Progress and Condition of the Illinois State Museum of Natural History PDF eBook
Author Illinois State Museum
Publisher
Pages 98
Release 1914
Genre Natural history
ISBN

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