COVER: Universal History Archive/Universal Images Group/Getty Images (poison bottle)
INTERIOR: Alamy Stock Photo: Lordprice Collection; PNC Collection; Rich Wheater/Aurora Photos. AP Photo: John W. Liston. Creative Commons: The following images from Wikimedia Commons are used under Creative Commons Attribution – Share Alike 3.0, Author: Bullenwächter. Courtesy: «Ad for the Keeley Institute, Greensboro, N.C.» The Edward Merritt McEachern Jr. Collection. Courtesy of East Carolina University Digital Collections, https://digital.lib.ecu.edu/15393; Division of Medicine & Science, National Museum of American History, Smithsonian Institution; Lydia Kang; Margaret Thatcher Foundation; «Mrs. Winslow Soothing Syrup» from the Walter Havinghurst Special Collections, Miami University Libraries, Oxford, Ohio; Gregg Olsen; Nate Pederson; The Trustees of the Boston Public Library; Washington State Archives; Kenneth Yu/Workman Publishing. Dreamstime: Kaiskynet; Norman Pogson. fotolia: Zsolnai Gergely; Ruslan Gilmanshin; Jnjhuz; jonnysek; Juulijs; Kenishirotie; konstan; Morphart; Scrapster. Getty Images: Bettmann; John B. Carnett; De Agostini Picture Library; Hulton Deutsch; Florilegius; Heritage Images; Historical Picture Archive; Imagno; Lambert; Museum of Science and Industry, Chicago; New York Daily News; NLM/Science Source; Paul J. Richards/AFP; Science & Society Picture Library; Underwood Archives; Vintage Images. Library of Congress: Library of Congress LC-DIG-ds-00242; Library of Congress LC-DIG-pga-04657; Library of Congress LC-USZ61-215; Library of Congress LCUSZ62-11916; Library of Congress LC-USZC2-5353; Library of Congress, National Tribune Sept 24, 1881. Public Domain: Science Source: Nigel Cattlin; CC Studio; Gregory Davies/Medinet Photographics; King’s College London; Ted Kinsman; Patrick Landmann; Patrick Llewelyn-Davies; Mary Evans Picture Library; Science Source. John Serrao; SPL; Spencer Sutton; Harry Taylor/Dorling Kindersley/Natural History Museum, London; Charles D. Winters. Shutterstock.com: Labetskiy Alexandr; Uncle Leo. The New York Public Library. Wellcome Images: Science Museum, London; Wellcome Library, London.