1. Christopher Hill, The World Turned Upside Down: Radical Ideas During the English Revolution (New York: 1972). For a reconsideration of the Levellers see the essays in Michael Mendle, ed., The Putney Debates of 1647: The Army, the Levellers and the English State (Cambridge: 2010), especially Blair Worden, “The Levellers in History and Memory, c. 1660–1960,” 256–82, and J. G. A. Pocock, “The True Leveller’s Standard Revisited: An Afterword,” 283–91.
2. Alan Rudrum, “Research Reports, VI—Theology and Politics in Seventeenth-Century England,” The Clark Newsletter (1988) 15:5–7 argued that the concept of universal perfection inherent in alchemy made it more compatible with Arminian views than with predestination. See also Nigel Smith, “The Charge of Atheism and the Language of Radical Speculation, 1640–1660,” in Atheism from the Reformation to the Enlightenment eds. Michael Hunter and David Wootton (Oxford: 1992), 131–58, esp. 135–8 on Lawrence Clarkson. Following the condemnation and burning of his monist tract “A Single Eye all Light no Darkness” (1650), Clarkson became an itinerant “professor” of astrology and physic before converting to Muggletonianism.
3. Thomas Fuchs, The Mechanization of the Heart: Harvey and Descartes, trans. Marjorie Grene (Rochester, NY: 2001).
4. Singer, The Development of the Doctrine of Contagium Vivum (London: 1913), 44–5. See also Walter Pagel, “Harvey and the ‘Modern’ Concept of Disease,” Bulletin of the History of Medicine (1968) 42:496–509.
5. Ph.D. dissertation;Niebyl,1970