Copy letter, from Sir John Herschel to William Whewell, 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. Had an encouraging conversation with William Lamb, Lord Melbourne, about funding for the South Polar expedition. Asks William Whewell and George Peacock to prepare a proposal regarding the expedition, John Frederick William Herschel doing the same. 22 October 1838