25
National Aeronautics and Space Administration, "Planting an Ecosystem on Mars," NASA website, May 6, 2015, https://www.nasa.gov/feature/planting-an-ecosystemon-mars.
26
Merriam-Webster Online, s. v. "dum spiro, spero."
27
Roy Porter, The Cambridge History of Medicine (New York: Cambridge University Press, 2006), 78.
28
Daniel L. Gilbert, Oxygen and Living Processes: An Interdisciplinary Approach (New York: Springer-Verlag, 1981), 3.
29
Paula Findlen and Rebecca Bence, "A History of the Lungs," Stanford University website, Early Science Lab, https://web.stanford.edu/class/history13/earlysciencelab/body/lungspages/lung.html.
30
Andrew Cunningham, The Anatomical Renaissance (Abingdon, UK: Routledge, 2016), 61.
31
Saul Jarcho, "William Harvey Described by an Eyewitness (John Aubrey)," American Journal of Cardiology 2, no. 3 (September 1958): 381384.
32
Thomas Wright, William Harvey: A Life in Circulation (Oxford, UK: Oxford University Press, 2013), xviixxi.