A Manual of Aquatic Plants can be said to be a classic; it made the identification of aquatic plants in sterile as well as in flowering or fruiting condition as simple as possible, and covers a region from Minnesota to Missouri and eastward to ...

This revised and updated edition of Rudolf Geiger's classic text provides a clear and vivid description of the surface microclimate, its physical basis, and its interactions with the biosphere. The book explains the principles of microclimatology ...

This informative book takes a comprehensive look at the subject of glacial geology in the Pleistocene Epoch, and is highly recommended for inclusion on the bookshelf of anyone with an interest in the subject. Preface: 'The Pleistocene epoch ...

This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages ...