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Author: Clinton Hart Merriam
Publisher:
ISBN:
Category : Crop zones
Languages : en
Pages : 90
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Author: Clinton Hart Merriam
Publisher:
ISBN:
Category : Crop zones
Languages : en
Pages : 90
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Book Description
Author: Clinton Hart Merriam
Publisher:
ISBN:
Category : Crop zones
Languages : en
Pages : 92
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Author: United States. Department of Agriculture
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Clinton Hart Merriam
Publisher: Forgotten Books
ISBN: 9780260468291
Category :
Languages : en
Pages : 88
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Excerpt from Life Zones and Crop Zones of the United States For ten years the Biological Survey (and its predecessor, the Divi Sion of Ornithology and Mammalogy) has had small parties in the field traversing the public domain for the purpose of studying the geographic distribution of our native land animals and plants and mapping the boundaries of the areas they inhabit. The present report is intended to explain the relations of this work to practical agriculture and to Show the results thus far attained - it does not deal with other investigations carried on by the Survey. It was early learned that North America is divisible into seven transcontinental belts or life zones and a much larger number of minor areas or faunas, each characterized by particular associations of animals and plants. It was then suspected that these same zones and areas, up to the northern limit of profitable agriculture, are adapted to the needs of particular kinds or varieties of cultivated crops, and this has since been fully established. When, therefore, the natural life zones and areas, seemingly of interest only to the naturalist, were found to be natural crop belts and areas, they became at once of the highest importance to the agriculturist. A map show ing. Their position and boundaries, so far as ascertained at the close of the field season of 1897, accompanies this report, and lists of the more Important crops of each belt and its principal subdivisions are here for the first time published. The matter relating to the native animals and plants has been reduced to a fragmentary outline, for the reason that this branch of the subject is of comparatively little inter est to the farmei and fruit grower. 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:
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ISBN:
Category : Agriculture
Languages : en
Pages : 708
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 490
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Author: United States. Department of Agriculture
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 960
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Author: United States. Department of Agriculture
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: United States. Department of Agriculture
Publisher:
ISBN:
Category :
Languages : en
Pages : 766
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Author: United States. President
Publisher:
ISBN:
Category : Executive departments
Languages : en
Pages : 836
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