An answer to a pamphlet entitled "A narrative of facts," lately published by Mr. Thomas Mudge, junior, relating to some time-keepers constructed by his father Mr. Thomas Mudge; Wherein is Given An Account of the Trial of his First Time-Keeper, and of the Three Trials of his Two Other Time-Keepers, Between the Years 1774 and 1790, By Order of the Board of Longitude, At the Royal Observatory: And also the Conduct of the Astronomer Royal, and the Resolutions of the Board of Longitude, respecting them, Are Vindicated from Mr. Mudge's Misrepresentations. By Nevil Maskelyne, D. D. F. R. S. and Astronomer Royal - Maskelyne, Nevil 1732-1811 (printed for F. Wingrave, successor to Mr. Nourse, in the Strand, 1792)
English Short Title Catalog, T68329
Reproduction of original from British Library
The 40pp. section is the Appendix
This defence against Thomas Mudge's charge provoked Mudge to write in the same year: 'A reply to the Answer of the Rev. Dr. Maskelyne'