Letter from [Henry Hallett] Dale, Medical Research Council, National Institute for Medical Research, Hampstead, London, to the Assistant Secretary of the Royal Society, Burlington House 'Dear Mr.Towle, Can I purchase 'Phil-Trans', Vol.160, Pt. II, 1870, at the special rate at which publications are supplied to Fellows of the Society? If so, would you kindly have it sent to me here, with the account? Yours faithfully, H H Dale'. 9 November 1921