Courtesy National Museum of Photography, Film, & Television/Science & Society Picture Library.
Courtesy National Library of Medicine and Light, Inc.
Courtesy Ralph R. Frerichs, UCLA Department of Epidemiology, School of Public Health, www.ph.ucla.edu/epi/snow.html.
© Lester V. Bergman/Corbis.
ABOUT THE AUTHOR
Steven Johnson is the bestselling author of Everything Bad Is Good for You: How Today’s Popular Culture Is Actually Making Us Smarter; Mind Wide Open: Your Brain and the Neuroscience of Everyday Life; Emergence: The Connected Lives of Ants, Brains, Cities, and Software; and Interface Culture: How New Technology Transforms the WayWe Create and Communicate. He writes for Wired, Discover, and The New York Times Magazine, and is a Distinguished Writer in Residence at New York University’s Department of Journalism. He lives in Brooklyn with his wife and their three sons. Online, he can be reached at www.stevenberlinjohnson.com.
The Ghost Map: The Story of London's Most Terrifying Epidemic--and How It Changed Science, Cities, and the Modern World Page 30