Of Dumbleton’s many scientific theories there is one in particular that is worth mentioning here. By making the assumption that bodies are finite, Dumbleton was able to conjecture that contraction or expansion, as in cases of condensation or rarefaction, does not eliminate any parts of a body; rather, a “ denumerable number of parts” always exists. Though the idea of molecules was not theorized at this time, Dumbleton’s speculation helped to tame the view that bodies have infinitely divisible parts.