Copy of a letter, from John Frederick William Herschel to Richard Sheepshanks, dated at Collingwood Copy of letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. About an astronomer for the Madras observatory. Suggests ways to reduce glare and so improve measurements [see Richard Sheepshanks's 1849-3-4]. 9 March 1849