Photo and Illustration Credits

The illustrations and tables featured in Mathematics were created by GGS Information Services. The photographs appearing in the text were reproduced by permission of the following sources:

Volume 2

United Nations: 2; Martha Tabor/Working Images Photographs: 4, 5, 33, 109, 140, 155; RTKL: 7; Photograph by Dr. Wm. M. Harlow. Photo Researchers, Inc.: 12; The Library of Congress: 17; © Bettmann/Corbis: 26, 36; AP/Wide World Photos: 27, 128; UPI/Corbis-Bettmann: 29; Archive Photos: 32; Photograph by Ken M. Highfill. Photo Researchers, Inc.: 37; Art Resource: 40; Corbis-Bettmann: 43, 56, 75, 136; Photo Researchers, Inc.: 46, 153; The Granger Collection, New York: 53, 103; Wolf Foundation: 54; © Martha Tabor/Working Images Photographs: 59, 145; © 2001 Dr. Andrew D. Burbanks: 68; © Jim Zuckerman/Corbis: 69; Photograph by Eliot Glassheim: 77; AP/Wide World Photos, Inc.: 78; © Photograph by Martin Gardner: 81; © Biophoto Associates/Photo Researchers, Inc.: 85; Photograph by Tom Dunham: 87; © AFP/Corbis: 104; Bettmann/Corbis: 120; © Bettmann/CORBIS: 121; Photograph by Robert J. Huffman. Field Mark Publications: 125; Photograph by Earl Dotter: 126; Michael Shane Smith/Getty Images: 142; UPI/Corbis-Bettmann: 152; Corbis Corporation: 156; Photo Researchers: 158; © Reuters New Media Inc./Corbis: 173; Doris Langley Moore Collection: 175.