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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 publi

This is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accur

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant mark

This 1993 textbook describes and explains the origin and evolution of plants as revealed by the fossil record.