Subseries consists of manuscripts and drafts of Hacking’s writing. Records span Hacking’s career and reflection on topics that include natural kinds, categorization, logic, reasoning, and the philosophy of mathematics. Subseries includes multiple chapters from the unpublished book Tradition of Natural Kinds and Why is there philosophy of mathematics at all? (2013). Some files include correspondence, which is indicated in the file title within square brackets.
Digital files consist of drafts, research notes and proofs for his book, Why is there philosophy of mathematics at all? (Cambridge University Press, 2014), and unpublished projects Tradition of Natural Kinds and Making Up People. Also included is a folder titled “CURRENT SMALL PROJECTS” which includes an assortment of draft writing.