Copy of draft letter, from Sir John Herschel to Wilhelm Struve, dated at Slough Copy of draft letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. May not be able to separate double stars with the twenty foot reflector. Is reviewing nebulae. Regrets [Josef] Fraunhofer did not live to see Wilhelm Struve's work. Speaks of standard catalogue of 2881 stars as joint labor of all observatories. Interested in bright stars with minute companions. 3 January 1827