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Author: David Starr Jordan
Publisher:
ISBN:
Category :
Languages : en
Pages : 400
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Author: David Starr Jordan
Publisher:
ISBN:
Category :
Languages : en
Pages : 400
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Book Description
Author: David Starr Jordan
Publisher:
ISBN:
Category : Vertebrates
Languages : en
Pages : 390
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Author: David Starr Jordan
Publisher:
ISBN:
Category : North America
Languages : en
Pages : 414
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Author: David Starr Jordan
Publisher:
ISBN:
Category : Vertebrates
Languages : en
Pages : 390
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Book Description
Author: David Starr Jordan
Publisher:
ISBN:
Category : Vertebrates
Languages : en
Pages : 392
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Author: David Starr Jordan
Publisher:
ISBN:
Category : Vertebrates
Languages : en
Pages : 375
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Author: David Starr Jordan
Publisher:
ISBN: 9781331928492
Category : Science
Languages : en
Pages : 406
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Excerpt from A Manual of the Vertebrate Animals of the Northern United States: Including the District North and East of the Ozark Mountains, South of the Laurentian, Hills, North of the Southern Boundary of Virginia, and East of the Missouri River Inclusive of Marine Species This book is designed to give to students and collectors a ready means of identifying the Vertebrate fauna of the region which it covers, and of recognizing the characters on which the families, genera, and species of these animals are founded. To these ends, I have made use of a system of analytical keys by which differential characters are brought into contrast. The usefulness of such keys has long been recognized by botanists, and in ornithology the recent works of Coues and Ridgway have proved their value to the student. That the book might not reach a size too large for field or class use, I have made all descriptions very concise, with as few repetitions as possible. I have confined the generic characters to the analytical keys, using as a rule only such characters as are distinctive as well as descriptive. The need of condensation has caused the omission of synonymy, and of references to authorities except in special cases. In the first four editions of this work (1876, 1878, 1880, 1884), large use was made of artificial characters in the analyses of the genera. The use of such characters is often a help to quick identification of species, but with the disadvantage of hiding from the student the real characters on which classification is based. 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.
Author: Davenport Academy of Science, Davenport, Iowa
Publisher:
ISBN:
Category :
Languages : en
Pages : 596
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Author: Davenport (Iowa) Public Museum
Publisher:
ISBN:
Category : Natural history
Languages : en
Pages : 898
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Author: Davenport Academy of Sciences, Davenport, Ia
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 996
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