Letter, from Ann Smyth to Sir John Herschel, dated at 3 Cheyne Walk, Chelsea Autograph letter signed by sender. Thanks John Frederick William Herschel for reporting on C. P. Smyth's progress. Has read John Frederick William Herschel's translations of Schiller's The Walk. Sends copy of C. P. Smyth's work at Baseline Camp Zwartland on the remeasurement of N. L. Lacaille's meridian of arc. 6 February 1842