[141] See Trevithick's letter, vol. ii., p. 315.
[142] See vol. i., p. 5.
[143] See vol. ii., p. 37.
[144] See vol. ii., p. 208.
[145] See vol. ii., p. 168.
[146] See vol. i., p. 243.
[147] See vol. i., p. 343.
[148] See vol. ii., p. 129.
[149] See vol. ii., p. 108.
[150] See letter from Mr. Michael Williams, vol. ii., p. 109.