[101] Smiles' 'Lives of Boulton and Watt,' p. 228.
[102] Appendix A to Tredgold, 'Pole on Cornish Engines,' p. 49.
[103] 'Phil. Mag. and Annals,' N.S., vol. viii., p. 309, by W. J. Henwood.
[104] Ibid., p. 313.
[105] Ibid., vol. i., p. 127.
[106] 'Records of Mining,' p. 163.
[107] Alteration in the boilers that year.
[108] 'Phil. Mag. and Annals,' vol. x., p. 97, "Notes on Some Recent Improvements of the Steam-Engine in Cornwall," by W. Jory Henwood, F.G.S.
[109] See Rees 'On the Steam-Engine,' published 1819.
[110] See vol. i., p. 166.