Copy letter from Robert William Frederick Harrison, to Lady Burdon Sanderson, 64 Banbury Road, Oxford Harrison can find no record of a paper by Sir John Burdon Sanderson published by the Royal Society before the Croonian Lecture of 1867. That was published in 'Philosophical Transactions [of the Royal Society]' and as an abstract in 'Proceedings [of the Royal Society]'. It seems likely that the abstract is was Sir John was referring to in his notebook of 1865. There is nothing in the Register of Papers for a paper of his from 1865, the above paper being received on 1866. 5 August 1908