Copy letter from Robert William Frederick Harrison, to Alexander M Cameron, Walgett, New South Wales, Australia 'Dear Sir, I am directed to acknowledge the receipt of your letter of November 16, 1895, together with a copy of your book "Light as the Interpretation of the Law of Gravity", and to say that all papers intended for reading before the Society must come "communicated" by a Fellow of the Society. I am, Dear Sir, yours faithfully, Robt Harrison Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 8 January 1897