256
Thomas A. Wehr, «In Short Photo Periods, Human Sleep Is Biphasic,» Journal of Sleep Research 1 (1992): 103–7.
257
Jon Mooallem, «The Sleep-Industrial Complex,» The New York Times, November 18, 2007, .
258
Ekirch, email to the author.
259
«History of the Public Lighting of Paris,» Nature 132 (1933): 888–89.
260
Doug Peterson, «Who's Afraid of the Dark?» LASNews, Summer 2013, .
261
Stephanie Hegarty, «The Myth of the Eight-Hour Sleep,» BBC News, February 22, 2012, .
262
Ibid.
263
Peterson, «Who's Afraid of the Dark?»
264
Hegarty, «The Myth of the Eight-Hour Sleep.»
265
Christopher Winn, I Never Knew That About London (New York: St. Martin.'s Press, 2007), Kindle edition.
266
«History of the Public Lighting of Paris.»
267
James G. Speight, Natural Gas: A Basic Handbook (Houston: Gulf Publishing Company, 2007), 22.
268
Nor-Afidah Abd Rahman, «Street Lighting,» Singapore Infopedia, 1998, .
269
Kevin Hillstrom and Laurie Collier Hillstrom, The Industrial Revolution in America: Iron and Steel (Santa Barbara: ABC–CLIO, 2005), 107.
270
Derickson, Dangerously Sleepy.
271
Ibid.
272
United States, Supreme Court, Women in Industry: Decision of the United States Supreme Court in Curt Muller Vs. State of Oregon, Upholding the Constitutionality of the Oregon Ten-Hour Law for Women and Brief for the State of Oregon, 1908, .
