1. Baden Powell, London Review, vol. 1, no.2, 1830, p.467.
2. Ibid., p.467.
3. George Peacock, A treatise on algebra, 1830, p.1.
4. Using these labels may be anachronistic, but it is not without point or precedent. For example, M.R. Cohen called De Morgan a formalist — M.R. Cohen, Reason and Nature. An essay on the meaning of the scientific method, Free Press, Collier-Macmillan, London, 1964, p.184; and the Dutch intuitionist Brouwer says that mathematics is ‘inner architecture’ which is grounded in consciousness whose ‘initial phenomena is a move in time’, see L.E.J. Brouwer, ‘Consciousness, philosophy and mathematics’, Proc. of Xth Ann. Cong. in Phil., Amsterdam, p.1235 and p.1249.
5. For a general assessment of Hamilton’s place in the history of mathematics see, for example: F. Cajori, A history of mathematics, New York, Macmillan, 1894, esp. pp.318–319;