Letter from J Masesay, Dept of Physiology, University of Sheffield, to [Henry] Barcroft, Queen's University, Belfast Is not quite clear about Barcroft's statement that 'when a tourniquet is applied occluding the veins the venous pressure will rise to the systole level'. Asks about the corrrect temperature for water baths when measuring venous distensibility. 4 October 1946