Copy of draft letter, from Sir John Herschel to James South, 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. A friend has requested John Frederick William Herschel to ask James South whether James South has a large Cauchoix objective lens that he would be willing to sell. John Frederick William Herschel has dismantled his 20-ft. telescope for voyage to Cape Town. 4 July 1833