Copy letter from Robert William Frederick Harrison, to Henry Clifton Sorby, Fellow of the Royal Society, Broomfield, Sheffield 'Dear Mr. Sorby, Your impression is quite correct with regard to Mr. Snelus. He died a few months ago. I trust you are better in health than when I last heard from you, but I suppose you seldom come to London. Believe me, Very truly yours, Robt Harrison'. 13 October 1906