Letter from J M Barnes, MRC Toxicology Research Unit, Carshalton to Howard Walter Florey Will be pleased to see Born - knowledge of biochemistry and interest in experimental pathology sounds an excellent combination - is thinking of doing experiments on absorption of inhaled material from the lungs - would like to come to Oxford to see technique Florey and Sanders used for intra thoracic operations on rats - will write when he has seen Born. 24 February 1950