Copy letter, from Sir John Herschel to William Whewell, dated at Collingwood Copy of letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. Thanks for William Whewell's paper on Aristotle. Discusses the philosophical meaning of the term conception. Mentions a visitation to the universities involving the Royal Commission on the Universities of Oxford and Cambridge [on which John Frederick William Herschel eventually served]. 5 May 1850