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Introduction by ADELE SIMMONS

Thank you, Brian. Peter Raven is director of the Missouri Botanical Garden and a former MacArthur Foundation fellow. He is home secretary of the National Academy of Sciences and a member of the President's Committee of Advisors on Science and Technology. In the interest of saving trees, Peter's office does not routinely circulate the list of 450 scientific articles he has written. Peter's passions are the plant collections and the animals of the world. For example, he has encouraged the MacArthur Foundation to help to preserve the botanical collections in St. Petersburg. Peter is in every sense a citizen of the world. It is a pleasure to welcome him here today.