Letter from Sir David Bruce, Entebbe, Uganda, to Sir Michael Foster of the Malaria Committee Encloses a box of biting flies for identification at the British Museum; is trying to get living flies from the Eastern Belt to see if they will carry sleeping sickness. Is expecting Capt Greig. Notes that Dr Wiggins in Kavirondo is finding trypanosoma in practically every case of sleeping sickness -- 'I am going on the hypothesis that the trypanosoma is the cause'. p49. 16 May 1903