Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to [George Fiddes,] the Under Secretary of State, Colonial Office Encloses a statement of the approximate expenses of the proposed scheme for an investigation into Surra in the Sudan [not enclosed], which estimates £3500 for the full thirty months. Reminds the Under Secretary that the Society have offered to pay £300 out of the small balance remaining in their hands on account of the Sleeping Sickness investigation. 17 May 1919