Copy, letter from Arthur G Bagshawe, Tropical Diseases Bureau, Imperial Institute, to Sir David Bruce Reviews the current state of research into some of the main diseases. Thinks that attempts to discover the transmission of Leishmania have not been well-organised -- that Blackwater is a sporadic disease not consistent enough to warrant a Commission of its own -- 'leprosy is a hard nut, but it will have to be cracked some day' -- notes that Noguchi at Guayaquil claims to have discovered the Yellow Fever organism. Suggests that 'the most important work to be done is that on quinine'. p104. 11 February 1919