 According to Bacon, more general material structures convene to create larger—and more sparse—bodies, and given the laws of nature that correlate powers to these structures, these bodies have their natures and belong to a species or genus due to the structures and causal powers of their constituent parts. Baconian forms exhibit the two features of what me might call ‘corpuscular forms’: material structures plus the laws of nature combine to cause and explain the properties of bodies and determine their species  membership.[2]