1. For a review of the philosophy of chemistry in the GDR, see Laitko, H. (1996) Chemie und Philosophie: Anmerkungen zur Entwicklung des Gebietes in der Geschichte der DDR. In Philosophie der Chemie – Bestandsaufnahme und Ausblick (Psarros, N. et al., eds), pp. 37–58, Königshausen & Neumann; for a bibliography, see Schummer, J. (1996) Bibliographie chemiephilosophischer Literatur der DDR, Hyle 2, 2–11.
2. Paneth, F.A. (1962) The epistemological status of the chemical concept of element, parts I & II. Br. J. Phil. Sci. 13, 1–14, 144–160 [first published in German in 1931]. Interested readers may find more on Paneth and other chemists mentioned in this section in the Hyle series ‘Short Biographies of Philosophizing Chemists’.
3. Mittasch, A. (1948) Von der Chemie zur Philosophie, Ebner.
4. Polanyi, M. (1958) Personal Knowledge: Towards a Post-critical Philosophy, University of Chicago Press.
5. Caldin, E.F. (1959) Theories and the development of chemistry. Br. J. Phil. Sci. 10, 209–222; Caldin, E.F. (1961) The Structure of Chemistry in Relation to the Philosophy of Science, Sheed & Wards [reprinted in Hyle 8 (2002), pp. 103–121].