Draft letter, from Sir John Herschel to Thomas Young, dated at 56 Devonshire St. Autographed draft letter. Draft written around letter from Mrs Forbes [HS/18/335a] Herschel encloses note from Sir John Barrow refusing scientific instruments and objecting to using barometers. Supplying cameras and sextants to Admiralty's marine survey is not interference by Board of Longitude. Sent John Frederick William Herschel's expenses to Edward Sabine; has no further word on subject. Encloses Mr. Stewart's note about damages at Wrotham. 8 November 1825