Published online by Cambridge University Press: 05 January 2009
During the course of the eighteenth century important changes occurred in the conception of matter held by British natural philosophers. Historians of science have described these changes in different ways, but certain common features can be abstracted from the more recent accounts. First, there was a movement away from Newtonian matter theory, which saw all matter as the various organizations of homogeneous particles and the forces of attraction and repulsion acting between them. In place of this theory increasing favour was shown towards a more empirical or ‘chemical’ approach to matter which assumed the existence of several essentially distinct types of matter each endowed with different specific qualities or properties. Second, there was an increasing tendency to accept activity as a property of matter itself rather than to ascribe it to immaterial forces.
An earlier version of this paper was read to a joint meeting of the British Society for the History of Science and the Sociology of Science Study Group of the British Sociological Association, on ‘New perspectives in the history and sociology of scientific knowledge’, University of Bath, March 1980.
1 Throughout this paper the word ‘Newtonian’ will be used to designate the explanation of phenomena through the use efforces of attraction or repulsion.
2 The first change is described in Thackray, Arnold, Atoms and powers: an essay on Newtonian matter theory and the development of chemistry, Cambridge, Mass., 1970CrossRefGoogle Scholar; despite significant differences of emphasis, Schofield, Robert E.'s Mechanism and materialism: British natural philosophy in an age of reason, Princeton, 1970Google Scholar, is also in general agreement with this. For the second change, see Heimann, P. M. and McGuire, J. E., ‘Newtonian forces and Lockean powers: concepts of matter in eighteenth-century thought’, Historical studies in the physical sciences, 1971, 3, 233–306CrossRefGoogle Scholar; and Heimann, P. M., ‘“Nature is a perpetual worker”: Newton's aether and eighteenth-century natural philosophy’, Ambix, 1973, 20, 1–25.CrossRefGoogle Scholar
3 Thackray, ibid., pp. 245 f.
4 Heimann, P. M., ‘Voluntarism and immanence: conceptions of nature in eighteenth-century thought’, Journal of the history of ideas, 1978, 39, 271–83 (283).CrossRefGoogle Scholar
5 The work of Mary Douglas is currently the strongest anthropological influence. See Bloor, David, ‘Polyhedra and the abominations of Leviticus’, British journal for the history of science, 1978, 11, 245–72CrossRefGoogle Scholar, and the papers by Steven Shapin and Barry Barnes, and Brian Wynne, in Barnes, and Shapin, (eds.), Natural order: historical studies of scientific culture, London and Beverley Hills, 1979.Google Scholar Robin Horton's traditional thought and western science’, in Young, M. F. D. (ed.), Knowledge and control: new directions for the sociology of education, London, 1967, pp. 137–71Google Scholar, has also been much cited and discussed.
6 Of course Newton himself tried to devise a purely mechanical explanation of universal gravitation in a letter to Boyle of 1679, but was later forced to abandon it. This account of Newton's ideas of matter/spirit relations is based on Newton's ‘mature’ thought, but I believe it is also consistent with his earlier views. For a fuller account of Newton's ideas on the status of forces, see McGuire, J. E., ‘Force, active principles, and Newton's invisible realm’, Ambix, 1968, 15, 154–208CrossRefGoogle Scholar, and also Westfall, R. W., Force in Newton's physics: the science of dynamics in the seventeenth century, London & New York, 1971.Google Scholar
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9 The best study of this is Kubrin, David Charles, ‘Providence and the mechanical philosophy: the creation and dissolution of the world in Newtonian thought. A study of the relations of science and religion in seventeenth century England’, Cornell University PhD dissertation, 1968Google Scholar. Part of this dissertation was earlier published as ‘Newton and the cyclical cosmos: providence and the mechanical philosophy’, Journal of the history of ideas, 1967, 28, 325–46.Google Scholar
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11 Newton, I., The mathematical principles of natural philosophy, tr. by Motte, A., rev. by Cajori, F., 2 vols., London, 1934, ii, 547.Google Scholar
12 Cotes argued that ‘either gravity must have a place amongst the primary qualities of all bodies, or extension, mobility, and impenetrability must not’, ibid., i, p. xxvi. Cajori enumerates the insertions made by Newton into the second edition of the Principia to declare his agnosticism on the cause of gravity; ibid., ii, 634.
13 This ‘proof’ grew out of Newton's four letters to Bentley which Bentley followed verbatim on occasions in his A confutation of atheism from the origin and frame of the world, London, 1693Google Scholar, which constituted his 6th–8th Boyle lectures for 1692. See especially his 7th lecture, pp. 28–31.
14 In his Boyle lectures, Clarke argued that gravity ‘cannot possibly be the result of any Motion originally impressed on Matter, but must of necessity be caused … by something which penetrates the very Solid Substance of all Bodies … Which is, by the way, an evident demonstration … that the world depends every Moment on some Superior Being, for the Preservation of its Frame’; A discourse concerning the being and attributes of God, the obligations of natural religion, and the truth and certainty of the Christian revelation, 7th edn., London, 1728, p. 158.Google Scholar See also Brampton Gurdon's Boyle Lectures, The pretended difficulties in natural or revealed religion no excuse for infidelity, London, 1723, pp. 173–4Google Scholar, and Baxter, Andrew, An enquiry into the nature of the human soul, London, 1733, p. 13.Google Scholar
15 See p. 105, below.
16 See Collins, Anthony, A reply to Mr. Clark's defence of his letter to Mr. Dodwell …, London, 1707, p. 24Google Scholar; and A reflection on Mr. Clark's second defence of his letter to Mr. Dodwell, London, 1707, pp. 37–9.Google Scholar For Clarke's reply to Collins on this issue see especially A second defence of an argument made use afin a letter to Mr. Dodwell to prove the immateriality and natural immortality of the soul, London, 1707, pp. 70 ff.Google Scholar
17 Alexander, H. G., The Leibniz–Clarke correspondence, Manchester, 1956, pp. 18, 20.Google Scholar
18 Ibid., pp. 23–4.
19 Ibid., pp. 23–4, 35.
21 Leibniz did not of course believe with Descartes that matter is only extended substance, but he did hold that extension enters into the essence or nature of bodies; see Latta, Robert (ed.), Leibniz: the Monadology and other writings, Oxford, 1898, p. 28nGoogle Scholar. In his third letter to Clarke, Leibniz denied that the soul is extended; see Alexander, , op. cit. (17), pp. 28–9.Google Scholar
22 On Newton's conception of nature as a perpetual worker, see Heimann, , ‘“Nature is a perpetual worker”’, op. cit. (2)Google Scholar. My interpretation of the relations between matter, spirit, and nature in the Leibniz-Clarke debate differs significantly from Heimann's treatment of these issues in his op. cit. (4). It appears to me that Heimann has not sufficiently distinguished between matter and nature in arguing that Newton denied that activity is intrinsic to the natural order (ibid., p. 273), and this leads him to the paradoxical assertions that ‘In denying that the activity of nature was intrinsic to the natural order, Newton emphasized the role of active principles … conceived as the manifestation of God's causal agency in nature’, and that ‘active principles were regarded as “general Laws of Nature” rather than as divine abrogations of the laws of nature’ (ibid., p. 274). From Heimann's own account it is clear that Newton did conceive of nature as being active, but that he did not believe matter to be so. If there was a ‘shift in theological sensibility’, as Heimann claims, then it was not from the view that activity was extrinsic to the natural order to the view that it was intrinsic to it, but from the view that all activity in nature had a spiritual cause to the view that matter itself could be defined as active substance, thus abrogating the need for spiritual agencies in nature. However, this claim itself would, I believe, be far too sweeping; see p. 108, above.
23 John Hutchinson (1674–1737) was a land steward to the Duke of Somerset who was introduced to the study of natural philosophy by John Woodward, c 1700. He claimed to have derived his own system of natural philosophy from the Bible by reading it in the original Hebrew without points. His most important ‘discovery’ was that all the phenomena of nature could be explained by reference to a mechanical fluid which he called ‘the Names’. This fluid acted in three forms which appeared to the senses as fire, light, and air. He argued that the fluid was an analogical representation of the Trinity. Fire was centred at the sun where, by its great agitation, it put the surrounding ‘air’ into the action of light which then streamed out to the periphery of the world system ‘congealing’ back into air as it did so. The outermost limits of the world were circumscribed by an impenetrable barrier of congealed atoms of light from which the air was forced back to the sun where it was once more put into the action of light. By this perpetual circulation, the original motion put into the world by God was preserved. Hutchinson used the expansive pressure of the fluid throughout the world system to explain gravity, cohesion, and many other phenomena. For further details, see Kuhn, A. J., ‘Glory or gravity: Hutchinson versus Newton’, Journal of the history of ideas, 1961, 22, 303–22CrossRefGoogle Scholar; Cantor, G. N., ‘Revelation and the cyclical cosmos of John Hutchinson’, in Jordanova, L. J. and Porter, Roy (eds.), Images of the earth: essays in the history of the environmental sciences, Chalfont St Giles, 1979, pp. 3–22Google Scholar; Wilde, C. B., ‘Hutchinsonianism, natural philosophy and religious controversy in eighteenth century Britain’, History of science, 1980, 18, 1–24.CrossRefGoogle Scholar
24 The philosophical and theological works of John Hutchinson, Esq., 3rd edn., 12 vols., London, 1748–1749Google Scholar: ‘A treatise of power essential and mechanical’, v, 147–8Google Scholar; and ‘The covenant in the cherubim’, vii, 329Google Scholar. All subsequent references to Hutchinson's work will be made to this edition.
25 Ibid., ‘An essay toward a natural history of the Bible’, i, 13.
26 Ibid., ‘A treatise of power’, v, 253–4, 282–93.
27 On the meaning of ‘High Church’, see p. 122, above.
28 Toland, John, Pantheisticon: or the form of celebrating the Socratic society …, London, 1751, p. 71Google Scholar. Here Toland alludes to Newton's assertion that all things are contained and move in God, in attempting to identify God with nature.
29 Ibid., p. 59. Toland argued that ‘…Matter itself cannot cohere, unless contained by some Force …’. In his Letters to Serena, London, 1704, p. 201Google Scholar, he also referred to Newton's conjecture in the scholium to definition VIII of the Principia that perhaps there is nothing absolutely at rest. He used this as part of his argument that motion is essential to matter.
30 Hutchinson, , op. cit. (24)Google Scholar, ‘A treatise of power’, v, 25, 148–9, 184–5Google Scholar. For Hutchinson it was the reverse: the power to act where He is not present was what distinguished God from mere mechanical agents.
31 Ibid., pp. 12–13, 22, 24, 84.
32 Ibid., ‘Glory mechanical’, xi, 224Google Scholar. For example, because the fluid became denser as it receded from the sun, the planets were pushed towards the sun, from the denser to the rarer medium. Light permeating the interstices of bodies was the cause of fluidity, while the pressure of the air from without was the cause of cohesion. On ‘the Names’, see n. 23, above.
33 On Newton and the possibility of transmutation, see McGuire, , op. cit. (8), p. 186Google Scholar; McGuire, J. E., ‘Transmutation and immutability: Newton's doctrine of physical properties’, Ambix, 1967, 14, 69–95CrossRefGoogle Scholar; Dobbs, Betty Jo Teeter, The foundations of Newton's alchemy; or ‘The hunting of the greene lyon’, Cambridge, 1976, pp. 218–20.Google Scholar
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36 Ibid., p. 141.
37 Hutchinson used the words ‘atoms’, ‘units’, and ‘corpuscles’ interchangeably. He considered that different types of bodies were composed of corpuscles of different shapes and sizes, and he clearly thought transmutation impossible. The fluid of ‘the Names’ was distinguished from all other matter, its corpuscles being finer and not subject to gravity, since they were the cause of gravity.
38 On Newton's matter theory, see Thackray, , op. cit. (2), chapter IIGoogle Scholar; and Thackray, A., ‘Matter in a nutshell: Newton's Opticks and eighteenth-century chemistry’, Ambix, 1968, 15, 154–208.CrossRefGoogle Scholar
39 Baxter, , op. cit. (14)Google Scholar. This was perhaps the classic Newtonian attempt to prove the existence of God by showing that gravity admits of no other cause.
40 On these developments in Newtonian matter theory, see Heimann, and McGuire, , op. cit. (2), p. 240Google Scholar; and Thackray, , op. cit. (2), pp. 176–8.Google Scholar
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44 Clayton, Robert, An essay on spirit wherein the doctrine of the Trinity is considered in the light of nature and reason…, London, 1751, p. 9Google Scholar. Clayton was an intimate friend of Samuel Clarke. He obtained his first bishopric in 1729 through Clarke's influence with Queen Caroline. His continual attacks on the doctrine of the Trinity led to an action against him by the Irish prelates, but he died of a nervous fever while proceedings against him were in progress.
45 Ibid.
46 Ibid., p. 11.
47 Ibid., p. 12.
48 Ibid., p. 24.
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52 Ibid., p. 8. Priestley attacked Baxter with arguments similar to those used by Leibniz against Clarke: to ascribe the powers of matter to God was to deny any distinction between God and nature (pp. 8–9).
53 Ibid., p. 17.
54 Ibid., pp. 18, 60 f, 74 f.
55 Ibid., p. 49.
56 Ibid., p. 108.
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59 Andrew Wilson (1718–92) was a Fellow of the Royal College of Physicians in Edinburgh (1764). He worked in Newcastle and London before being appointed physician to the medical asylum in London some time before 1777. His chief works of natural philosophy were The principles of natural philosophy, with some remarks upon the principles of the Newtonian philosophy …, London, 1758Google Scholar, and Short observations on the principles of moving powers assumed by the present system of philosophy, London, 1764.Google Scholar
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63 Ibid.
64 Ibid., p. 6.
65 Ibid., p. 56.
66 Ibid., p. 58.
67 Ibid. For Hutchinsonian cosmology, cf. n. 23, above.
68 Ibid., pp. 55–9.
69 Ibid., pp. 33–4.
70 Ibid., pp. 38–42.
71 Ibid., p. 41.
72 Ibid., p. 44.
73 Ibid.
74 Jones, William, Physiological disquisitions, or, discourses on the natural philosophy of the elements, pp. 5–8Google Scholar. Jones argued that to invest matter with motive properties of any kind would be to make it an animal as the Stoics had, a doctrine which, he claimed, had been revived by Clayton. Jones had already provided the most comprehensive reply to Clayton, 's Essay in his A full answer to the essay on spirit, London, 1753.Google Scholar
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77 Ibid.
78 Ibid., pp. 3–5, 9.
79 Ibid., p. 2.
80 See n. 23, above.
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83 Heimann, and McGuire, , op. cit. (2), p. 306.Google Scholar
84 Adams adopted many of Hutchinson's ideas, including the notion of a fire–light–air plenum, but he does not satisfy my definition of a Hutchinsonian as set out in Wilde, , op. cit. (23), p. 15Google Scholar: he nowhere indicated that he believed that the mechanism of the universe could be read directly out of Scripture.
85 Adams, G., Lectures on natural philosophy, 5 vols., London, 1794, i, 21.Google Scholar
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87 Ibid., iv, 33.
88 Ibid., p. 69.
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92 Ibid., p. 185.
93 For alternative approaches, see the works cited in n. 5, above.
94 Barnes, Barry and Shapin, Steven, ‘Where is the edge of objectivity?’, British journal for the history of science, 1977, 10, 61–6 (64).CrossRefGoogle Scholar
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102 Ibid, p. 83.
103 Ibid., p. 84.
104 Ibid., p. 86.
105 Ibid.
106 Ibid., p. 87.
107 Ibid., p. 174.
108 Ibid., p. 91.
109 It will be obvious from the above account that the classification of reality is only partly determined by social structure, since one type of social structure (strong grid) produces two different types of cosmology. The crucial factor seems to be the social experience of individuals.
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