1. Sir John F. W. Herschel, Preliminary Discourse, etc. (London and Philadelphia, 1831; title page to English edition says 1830, but the page witlt portrait contains correct date). Facsimile by Johnson Reprint Corporation, with a new introduction by M. Partridge (London, 1967). Page numbers refer to the American edition. For the English edition page numbers read thus: 6→9, 12→15, 39→52, 60→79, 61→80, 63→83, 64→84, 73→96, 78→104, 79→105, 85→113, 108→149, 141→188, 143→190, 145→194, 147→196, 149→198, 153→204, 156→208, 162→215, 188→250, 190→253.
2. Phil. Mag. 55 (1820), 417 ff. Forman, thus, is the discoverer of the chief error of Baconian philosophy, its fear of error. Note also that the reference to Bacon is echoed in Herschel’s often quoted eulogy on Bacon, quoted here at the opening of Section 5.
3. H. Bence-Jones, The Life and Letters of Faraday, in two volumes, 1 (London, 1870), 303–311, extracts from a lecture ‘On the Forms of Matter’, from which the above is an extraction. The full lecture is extant in the Royal Institution. I hope someone will soon publish Faraday’s early works.
4. See my ‘Methodological Individualism’, Brit. J. Sociology 11 (1960), and my Towards an Historiography of Science, History and Theory, Beiheft 2 (The Hague, 1963; facsimile reprint, Wesleyan Univ. Press, 1967). See also J. W. N. Watkins, ‘Epistemology and Politics’, Proc. Arist. Soc. (London, 1957).
5. Phil. Trans. (1820), 45 n.