Copy letter from Robert William Frederick Harrison, to J H HIll, Helly Terrace House, Mount Vernon, Hampstead Heath, N.W. Harrison does not remember definitely asking him to retain the engravings he offered to the Royal Society, and should not feel justified in making such a claim on him. Harrison is too busy to go into the matter, but states that the engravings were not in good enough condition to be added to the collection. 21 June 1904