Copy letter, from Sir John Herschel to Sir William Huggins, 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. Thinks it would be best to send his son's letter to G. G. Stokes at the Royal Society [of London] Cannot give a positive opinion on William Huggins's plan for seeing the prominences. Finds some discrepancies in the Report of William Huggins's paper on Sirius and the paper itself. 9 June 1869