Letter from W Grey Walter, Burden Neurological Institute, Stoke Lane, Stapleton, Bristol, to Henry Barcroft, Physiological Dept, Queen's University, Belfast Thanks him for his letter - discusses work on the' EEG and anoxia' in the war and notes 'it is still idiotically regarded as secret' - discusses RCAF research on convulsions and anoxia - will ask EEG colleagues about this. Also notes there are several EEG centres starting up in Northern Ireland and plans to train technicians. 27 June 1945