Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to G E Green Esq., Caius College, Cambridge 'I have looked into the question of any apparatus your brother might have belonging to the Royal Society. I cannot trace any. Therefore though some of it may have been bought by a donation, the Royal Society makes no claim. I find your brother has a grant of £30 in 1890, but there is nothing to show on th what it was expended.' 28 January 1915