Copy of a letter, from John Frederick William Herschel to Francis Baily, 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. Is delighted to hear that the Cavendish experiments are proving successful. Is progressing slowly with the reductions of his own southern sweeps. Regarding a state pension for Mrs. Gregory (Anne Gregory; widow of O. G. Gregory); would Francis Baily give him some idea of Mrs. Gregory's circumstances. 11 October 1841