Surface Formations and Agricultural Conditions of the South Half of Minnesota PDF Download
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Author: Frank Leverett
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 322
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Author: Frank Leverett
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 322
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Book Description
Author: Frank Leverett
Publisher: Forgotten Books
ISBN: 9781527797086
Category : Science
Languages : en
Pages : 176
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Book Description
Excerpt from Surface Formations and Agricultural Conditions of the South Half of Minnesota Soil is the loose unconsolidated material which nearly everywhere covers the surface of the earth and in which plant life may be maintained. It is made up of finely divided rock in which decaying vegetable matter and animal matter are mingled. A soil is generally in a state of change. It is being washed little by little to the creeks and rivers which carry it to the sea, where it often forms delta deposits; if no new soil formed, hard rock would finally be exposed instead of the loose plant-producing soil. But rocks at and near the surface are continually changing and new soil is being formed from the underlying rock or from loose clayey or gravelly material that may constitute the subsoil, or from bowldery material that at many places in Minnesota lies between the hard rock and the soil. Water and air attack rock matter and break it down. Heat and cold, freezing and thawing, shatter the rocks and give plants an Opportunity to send roots into the cracks that are formed, and these, prying the rocks apart, reduce them to particles of still smaller size. Even the hard solid rocks are ultimately broken down; a building of good solid stone may crumble in a few hundred years, especially in a moist climate. Some of the rocky matter is dissolved by the water and carried to the sea in solution. It is such dissolved material that makes water hard and that gathers in the bottom of a vessel when water is boiled. But not all of the soluble substances are dissolved and carried away; some remain in the soil, and the character of the soil depends largely upon these. Some soils are acid because they have not enough lime. Some are deficient in potash or phosphates, which are necessary if soil is to produce certain crops satisfactorily. 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 :
Languages : en
Pages :
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Author: Minnesota Geological Survey
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Frank Leverett
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Frank 1859-1943 Leverett
Publisher: Wentworth Press
ISBN: 9781373921291
Category : History
Languages : en
Pages : 184
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Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
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Languages : en
Pages : 0
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Author: Frank Leverett
Publisher: Forgotten Books
ISBN: 9781528525756
Category : Science
Languages : en
Pages : 112
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Excerpt from Surface Formations and Agricultural Conditions of Northeastern Minnesota Soil is the loose unconsolidated material which nearly everywhere covers the surface of the earth and in which plant life may be maintained. It is made up of finely divided rock in which decaying vegetable matter and animal matter are mingled. A soil is generally in a state of change. It is being washed little by little to the creeks and rivers which carry it to the sea, where it often forms delta deposits; if no new soil formed. Hard rock would finally be exposed instead of the loose plant-producing Soil. But rocks at and near the surface are continually changing and new soil is being formed from the Underlying rock or from loose clayey or gravelly material that may constitute the subsoil, or from bowldery material that at many places in Minnesota lies between the hard rock and the soil. Water and air attack rock matter and break it down. Heat and cold, freezing and thawing, shatter the rocks and give plants an opportunity to send roots into the cracks that are formed, and these, prying the rocks apart, reduce them to particles of still smaller size. Even the hard, solid rocks are ultimately broken down; a building of good solid stone may crumble in a few hundred years, particularly in a moist climate. Some of the rocky matter is dissolved by the water and carried to the sea in solution. It is such dissolved material that makes water hard and that gathers in the bottom of a vessel when water is boiled. But not all of the soluble substances are dissolved and carried away; some remain in the soil and the character of the soil depends largely upon these. Some soils are acid because they have not enough lime. Some are deficient in potash or phosphates, which are necessary if soil is to produce certain crops satisfactorily. 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: Frank Leverett
Publisher: Forgotten Books
ISBN: 9781390479584
Category : Science
Languages : en
Pages : 104
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Excerpt from Surface Formations and Agricultural Conditions of Northwestern Minnesota The natural economic assets Of an area, such as its soils, clays, build ing stones, iron ores, etc., 'all bear a direct relation to the geological fea tures Of that area, and a rational discussion Of such assets must give due importance to the geological history and environment Of the area which contains them. The last, and, therefore, from the standpoint Of the soils and surface features Of the country the most important, great geological event that has affected this area is the invasion Of sheets Of ice that moved southward from the Canadian highlands carrying with them rocky material which they had gathered in the north. When the ice melted it left large quantities Of rock and Soil and in the area here described this material nearly everywhere now 'forms the surface. 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: Frank Leverett
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 78
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Book Description
