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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 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. 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.
First comprehensive guide of its kind, this volume is essential for any study of freshwater algae in the British Isles.
Excerpt from The Lichen-Flora of Great Britain, Ireland, and the Channel Islands "Think of the beauty which God has spread abroad for our use; its profuseness in desert spots where none can see it; its minuteness, so that much can only be discovered by a microscope; and its extent, embracing all things." - Sewell. "Meek creatures! the first mercy of the earth, veiling with hushed softness its dentless rocks; creatures full of pity covering with strange and tender honour the sacred disgrace of ruin, laying quiet fingers on the trembling stones to teach them rest. No words that I know of will say what these Mosses and Lichens are; none are delicate enough, none perfect enough, none rich enough. They will not be gathered like the flowers, for chaplet or love-token; but of these the wild bird will make its nest, and the wearied child its pillow, and as the earth's first mercy so they are its last gift to us. When all other service is vain from plant and tree, the soft Mosses and grey Lichens take up their watch by the headstone. The woods, the blossoms, the gift-bearing grasses have done their parts for a time, but these do service for ever. Trees for the builder's yard, flowers for the brides chamber, corn for the granary, Mosses and Lichens for the grave." - Ruskin. "All organic life commences with excessively minute structures, which are continually reproduced in inconceivable numbers. On land the Lichens first appear on rocks, and the bark of trees, covering them with coloured spots and bands." - Heer. Seeds, to our eye invisible, will find On the rude rock the bed that fits their kind; There, in the rugged soil they safely dwell, Till showers and snows the subtle atoms swell, And spread th' enduring foliage; then we trace The freckled flower upon the flinty base; These all increase, till in unnoticed years The stony tower as grey with age appears. - Crabbe. 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.
Elms occur, both naturally and cultivated, throughout much of the temperate world. Because of their high tolerance to extreme growing conditions and their widespread distribution, elms have been widely planted in cities, towns and rural areas throughout North America and northern Europe. As such, their current demise due to several pandemics of Dutch elm disease has spurred a huge body of research on breeding for disease resistance, conservation and systematics. The Elms: Breeding, Conservation and Disease Management provides the current state of knowledge in these areas and is an important reference work for pathologists, breeders, taxonomists, and arborists.
This extensively revised, restructured, and updated edition continues to present an engaging and comprehensive introduction to the subject, exploring the world’s landforms from a broad systems perspective. It covers the basics of Earth surface forms and processes, while reflecting on the latest developments in the field. Fundamentals of Geomorphology begins with a consideration of the nature of geomorphology, process and form, history, and geomorphic systems, and moves on to discuss: structure: structural landforms associated with plate tectonics and those associated with volcanoes, impact craters, and folds, faults, and joints process and form: landforms resulting from, or influenced by, the exogenic agencies of weathering, running water, flowing ice and meltwater, ground ice and frost, the wind, and the sea; landforms developed on limestone; and landscape evolution, a discussion of ancient landforms, including palaeosurfaces, stagnant landscape features, and evolutionary aspects of landscape change. This third edition has been fully updated to include a clearer initial explanation of the nature of geomorphology, of land surface process and form, and of land-surface change over different timescales. The text has been restructured to incorporate information on geomorphic materials and processes at more suitable points in the book. Finally, historical geomorphology has been integrated throughout the text to reflect the importance of history in all aspects of geomorphology. Fundamentals of Geomorphology provides a stimulating and innovative perspective on the key topics and debates within the field of geomorphology. Written in an accessible and lively manner, it includes guides to further reading, chapter summaries, and an extensive glossary of key terms. The book is also illustrated throughout with over 200 informative diagrams and attractive photographs, all in colour.
Bridging the fields of conservation, art history, and museum curating, this volume contains the principal papers from an international symposium titled "Historical Painting Techniques, Materials, and Studio Practice" at the University of Leiden in Amsterdam, Netherlands, from June 26 to 29, 1995. The symposium—designed for art historians, conservators, conservation scientists, and museum curators worldwide—was organized by the Department of Art History at the University of Leiden and the Art History Department of the Central Research Laboratory for Objects of Art and Science in Amsterdam. Twenty-five contributors representing museums and conservation institutions throughout the world provide recent research on historical painting techniques, including wall painting and polychrome sculpture. Topics cover the latest art historical research and scientific analyses of original techniques and materials, as well as historical sources, such as medieval treatises and descriptions of painting techniques in historical literature. Chapters include the painting methods of Rembrandt and Vermeer, Dutch 17th-century landscape painting, wall paintings in English churches, Chinese paintings on paper and canvas, and Tibetan thangkas. Color plates and black-and-white photographs illustrate works from the Middle Ages to the 20th century.