Copy letter from Robert William Frederick Harrison, to M E Marsden, Farm "Middelvlei, Randfontein, Transvaal, Box 115, South Africa Harrison acknowledges receipt of Marsden's letter of 1 July and informs him that he has no power to receive any paper intended to be laid before the Royal Society, except those communicated by Fellows of the Society. He therefore returns his communication by post. 22 July 1907