After briefly sketching this method, I shall argue that the making of hypotheses about the invisible internal structure of things plays a crucial role in Bacon's method of induction, and that our knowledge of the laws of nature is inseparable from our knowledge of this invisible inner structure. Bacon means by each of these phrases the same thing, viz. But the expansion is modified, in that while it expands towards the circumference, it yet has some tendency to go upwards. And this exertion through the parts is also qualified in that it is not sluggish at all, but hurried and somewhat violent. Hurried, expansive motion, with some tendency to go upwards, is a nature which, to the best of Bacon's knowledge, was interchangeable with the nature of heat.
Induction begins with the compilation of three tables.
Then indeed, after the rejection and exclusion has been properly made, . . . Purely descriptive embryology, for example, investigates the latent process between a certain sort of manifest efficient cause, copulation, and the effect it sometimes has, childbirth. For example, detailed knowledge of the latent process of respiration in animals, including the intricacies of the Krebs cycle, were much harder to come by than the laws of chemistry which govern the process. Indeed, knowledge of the laws of chemistry were a necessary step on the way to knowledge of the latent process of respiration. The best way to understand Bacon's claim that knowledge of latent processes is subordinate to knowledge of laws, I think, is to construe it as a claim that knowledge of laws has more explanatory power than mere knowledge of a latent process.