Copy of letter, from Sir John Herschel to John Gibson Lockhart, 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. Did not expect payment for John Frederick William Herschel's [review of Mary Somerville's Mechanism of the Heavens] in Quarterly Review. Returns John Murray's remittance. François Arago's 'comet paper' and ensuing panic. Condolences on [death of John Gibson Lockhart's son]. 1 November 1832