Letter from Ronald Ross, The Incorporated Liverpool School of Tropical Medicine, Johnston Tropical Laboratory, University of Liverpool, to the Secretary of the Royal Society, Burlington House, London 'Dear Sir, On the 29th October I submitted a paper written by Messrs Moore and Walker and myself "On the Existance of Centrosomes and other structures in the Red Blood Corpuscles of Vertebrates". Will you kindly inform me whether the paper is likely soon to be read and published, as we are awaiting this before sending further papers of medical interest to the medical press. Yours faithfully, Ronald Ross'. 30 November 1906