"With 89 colored figures" Includes bibliographical references and index.
Summary:
"The author aims to point out how intimately man is linked to the plant biosphere, even though the vast fields of food and pharmaceuticals were consciously not considered. He has endeavored to explain the properties of plant materials and their processing as thoroughly as possible but in terms that are understandable to the interested layman. This information is of vial importance: the quality of our lives, our long-term survival critically depends on protecting the sources of plant materials that must be used in an intellgent, sustainable way. This book addresses all those interested in our natural environment and the plant products nature supplies" -- Back cover
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.