Papers on the History of Mathematics

  • C.S. Peirce and De Morgan on the four-colour conjecture [with E.K. Lloyd and R.J. Wilson] Historia Math. 4 (1977) 215-216.
  • The roots of combinatorics. Historia Math. 6 (1979) 109-136.
  • T.P. Kirkman, mathematican. Bull. London Math. Soc. 13 (1981) 97-120.
  • De Morgan on on map-colouring and the separation axiom. Archive for Hist. Exact Sci. 28 (1983) 155-170.
  • The historical background to Gerhard Ringel's work[with E.K. Lloyd and R.J. Wilson]. In: Topics in Combinatorics and Graph Theory (eds. R. Bodendick and R. Henn) Physica -Verlag, Heidelberg, 1990, 93-99. 
  • The development of topology. In Mobius and his Band (ed. J. Fauvel, R. Flood and R.J. Wilson) Oxford U.P. 1993, 104-119.
  • The history of combinatorics. (with E.K. Lloyd and R.J. Wilson). In: Handbook of Combinatorics  (eds. R.L. Graham, M. Grotschel, and L. Lovasz) North-Holland 1995, 2163-2198
  • The Icosian Calculus of Today. Proceedings of the Royal Irish Academy 95A (1995) 23-34. 
  • Mathematics of currency and exchange: arithmetic at the end of the thirteenth century. BSHM Bulletin 24 (2009) 67-77
  • Applicable Mathematics in the 18th century: An Example from the Textile Trade. Mathematics Today 47(2) (2011) 96-100.
  • Thomas Harriot on continuous compounding. BSHM Bulletin 28(1) (2013) 1-9.
  • Block Designs. In: Combinatorics Ancient and Modern (eds. J.Watkins and R.J. Wilson) Oxford U.P. (2013) 231-249)
  • More seventeenth century networks. BSHM Bulletin 32(1) (2017) 30-39.
  • Game, set, and graph. BSHM Bulletin 33(3) (2018)  166-178.
  • John Reynolds of the Mint: a mathematician in the service of king and commonwealth. Historia Math. 48 (2019) 1-28.
  • Thomas Harriot on the coinage of England. Archive for Hist Exact Sci. 73(4) (2019) 361-381.
  • Practical Statics in the Victorian Era.: Weighing Letters. Mathematics Today  55(3) (2019) 102-104.



Papers on the History of Numismatics and Metrology

  • Coin-weights in England - up to 1588. British Numismatic Journal 60 (1990) 65-79.
  • Review Article: British Coin-Weights (P. and B. Withers).  British Numismatic Journal 63 (1993) 160-162.
  • Coin-weights made by the Founders. British Numismatic Journal 71 (2001) 111-118.
  • A Tale Untangled: measuring the fineness of yarn. Textile History 35(1) 120-129.
  • Provincial coin-weights in the eighteenth century. British Numismatic Journal 74 (2004) 102-120.
  • Review Article: Weights and Measures in Scotland (R.D. Connor and A.D.C. Simpson). British Numismatic Journal 25 (2005) 206-207.
  • [NB and J. Hutchnison] Knowles Patent Yarn Balance. Textile History 40(1)  (2009) 97-102.
  • Checking the current coins  1344-1422. Britidh Numismatic Journal 81 (2011) 119-143.
  • Weight, coinage and the nation 973-1200. British Numismatic Journal 83 (2013) 75-100
  • Mathematics at the Mint< a seventeenth century saga. British Numismatic Journal  87 (2017) 151-161.
  • Without Grains: weighing silver coins in the civil war. British Numismatic Journal 88 (2018) 77-87. 
  • Review Article: The Coin-Weights of Ireland (P. and B. Withers) . British Numismatic journal (to appear).