Copy Letter from Robert William Frederick Harrison to The Earl of Berkley, Fellow of the Royal Society, Foxcombe, near Oxford 'My Lord, Referring to your letter of May 10th, enquiring as to the means of purchasing back parts of the Philosophical Transactions [of the Royal Society], I enclose a printed list which will, I think, give the desired information. I enclose, also, a printed slip relative to the prices of the volumes of Proceedings [of the Royal Society].' 20 May 1908