Letter from James Duff Brown, Borough of Finsbury, Public Libraries Committee, Clerkenwell Public Library, Skinner Street, to the Assistant Secretary of the Royal Society 'Dear Sir, I beg to acknowledge with best thanks receipt of the Royal Society 'Instructions and Schedules', which will prove of great service to me in my work. I am very much obliged to you, and shall make full acknowledgement for any suggestions I may receive from the classifications. Yours faithfully, James Duff Brown'. 22 June 1904