Copy letter from Robert William Frederick Harrison, to the Under Secretary of State for India, India Office, S.W. 'Sir, I have the honour to acknowledge the receipt of ten copies of a Preliminary Report by Major Ronald Ross, I.M.S., "On the Infection of Birds with Proteosoma by the Bites of Mosquitoes" [not enclosed]. I am, Sir, Your obedient Servant, Robt Harrison Asst. Sec. R. S. [Assistant Secretary, Royal Society]'. 23 November 1898