 It is also unclear what is the intent of the texts we do have that report on these investigations. It is sometimes said they are ‘lecture notes’. That seems pretty clearly wrong; they are too carefully written and structured. But it does seem clear, from cross-references, that some of them were to be studied in a certain order, and this order may conform to a course of study in the Lyceum. Interestingly, while all of the other biological treatises refer for further information to ‘the animal inquiries’,that is to something like the History of Animals that has come down to us, often in conjunction with ‘the dissections’, our History of Animals has no references to the other, explanatory studies. This suggests that the ‘inquiries and dissections’ had a different function in such a course of study, perhaps something akin to ‘reference works’.