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. Thanks Richard Sheepshanks for the engraving [of John Frederick William Herschel's portrait?]. Who should receive copies? Suggests that the 'Knight of C. Hill' [Sir James South and his Campden Hill Observatory] 'is not worth your powder.' 14 September 1845