Présentation de l'éditeur
The present book has been written with the object of supplying a concise account of those parts of geology which are of direct interest to the agriculturist. The study of the soil naturally forms the most important part of the book, and this has been treated as much as possible from a purely geological standpoint: the chemical and physical properties of soils are dealt with exhaustively in many books. It is to be regretted that considerations of space did not allow of a fuller discussion of the modern mechanical methods of soil-analysis that have proved so valuable in the hands of workers at Rothamsted, Cambridge and elsewhere. The later chapters of the book contain a summary of the distribution of the rock-formations of theB ritish I sles, and the characters of the soils yielded by them. Much difficulty was experienced in obtaining the necessary information, which is still far from complete. The facts had to be collected from many scattered sources, especially from the memoirs of the Geological Survey, the Journal of the Royal Agricultural Society, county histories and geographies and many other publications. Much valuable information was also derived fromM rA. D. Hall sP ilgrimage of British Farming. I must here express my gratitude to those gentlemen, too numerous to mention individually, who afforded me information in reply to direct enquiries. For much help and encouragement in the preparation of the book I am indebted toM rK. J. J. Mackenzie, Reader in Agriculture at Cambridge, and toD rF. H. A.
(Typographical errors above are due to OCR software and don't occur in the book.)
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Présentation de l'éditeur
This book was originally published prior to 1923, and represents a reproduction of an important historical work, maintaining the same format as the original work. While some publishers have opted to apply OCR (optical character recognition) technology to the process, we believe this leads to sub-optimal results (frequent typographical errors, strange characters and confusing formatting) and does not adequately preserve the historical character of the original artifact. We believe this work is culturally important in its original archival form. While we strive to adequately clean and digitally enhance the original work, there are occasionally instances where imperfections such as blurred or missing pages, poor pictures or errant marks may have been introduced due to either the quality of the original work or the scanning process itself. Despite these occasional imperfections, we have brought it back into print as part of our ongoing global book preservation commitment, providing customers with access to the best possible historical reprints. We appreciate your understanding of these occasional imperfections, and sincerely hope you enjoy seeing the book in a format as close as possible to that intended by the original publisher.
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