Copy letter, from Sir John Herschel to J. W. Morton, dated at Slough Copy of letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. Rejects offer of payment of £75 for serving as a Commissioner of Longitude, explaining that John Frederick William Herschel has 'ceased to consider myself a public functionary from the moment I became acquainted with the intentions of Government respecting the dissolution of the Board of Longitude.' 12 January 1830