Letter, from James South to Sir John Herschel, dated at Passy Autograph letter signed by sender. On the eloges of William Herschel being prepared by François Arago and J. B. Fourier. John Frederick William Herschel's and James South's work on double stars much appreciated among French astronomers. On Alexis Bouvard, Arago, and other French astronomers. On Wilhelm Struve's observations of double stars. 10 April 1825