 Scholars have highlighted the importance of Islamic philosophers in developing what came to be known in medieval Latin philosophy as the doctrine of minima naturalia (Dijksterhuis 1961, 205; Glasner 2001; McGinnis 2015). Giles of Rome particularly developed the notion of a natural minima in Thomistic thought: the notion of a minimum size for a given substance was linked in these discussions to the problem that a given quantity of one element could only be rarefied so far before it becomes a different element (Duhem 1985, 35–45).