Copy letter from Robert William Frederick Harrison, to Francis Darwin, Fellow of the Royal Society, Wychfield, Huntingdon Road, Cambridge 'Dear Sir, I am in receipt of your letter of yesterday stating that you cannot promise to report on Mr. Vernon's paper by January 3, but I shall be glad if you will send in your report as early in January as you can make it convenient & do so. I am, Faithfully yours, Robt Harrison Asst. Sec. R. S. [Assistant Secretary, Royal Society]'. 22 December 1897