 Discussions of what use can be made of tropes in science can be found scattered in the literature. Examples include Harré’s 2009 discussion of the role tropes play (and don’t play) in chemistry, and Nanay’s 2010 attempt to use tropes to improve on Ernst Mayr’s population thinking in biology. Most discussions have however been focused on the relationship between tropes and physics (Kuhlmann et al. 2002). Most influential in this respect is Campbell’s field-theory of tropes (defended in his 1990: Ch. 6; cf. also Von Wachter 2000) and Simons’ ‘nuclear’ theory of tropes and the scientific use he tentatively makes of it (Simons 1994; cf. also Morganti 2009 and Wayne 2008).