This book is printed on acid-free paper. ∞

Copyright © 2004 by Robert Adler. All rights reserved

Photo credits: pages 4, 8, 25, 31, 38, 55, 65, 71, 74, 77, 86, 88, 89, 96, 102, 115, 119, 123,
128, 136, 153, 178, 181, 185, 193, 195, 202: National Library of Medicine; page 111: Edgar Fahs
Smith Collection, University of Pennsylvania; page 149: Sophia Smith Collection, Nelson Library,
Smith College; page 151: Massachusetts Institute of Technology Museum; page 162: Beaufort-Wes
Museum; page 192: Courtesy Polly Matzinger.

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