Copy of draft letter, from Sir John Herschel to Augustus De Morgan, dated at Collingwood Copy of draft letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. Thought that Augustus De Morgan's last letter was supposed to be written in verse. Hopes his injury will soon improve. Does not recollect any habit of Humphry Davy rubbing his hands together. A professor, [G. J.?] Stoney, has re-invented John Frederick William Herschel's collimating telescope and not improved it. 12 September 1856