Miscellaneous papers concerning chronometers, including the ownership of chronometers; the rates of chronometers, 1844-1848; the succession of chronometer makers to businesses on the death of others; a printed sheet of the rates of the trial chronometers at Greenwich, including a list of depositories at the Thirteenth Annual Trial, and the premium winners at the twelve preceding trials; a list of the daily rates of the chronometers at the Liverpool Observatory for January 1846; an extract from 'The Liverpool Mercury', October 1847, concerning a letter from Airy to J. Aikin regarding the skill of chronometer makers; and notices of the days when the Time Ball did not function.