N G Heatley to L P Garrod, Pathology Department, St Bartholomew's Hospital, London Says Florey asked him to answer Garrod's letter of 22 September - read WHO report no 210 - realizes need for work on lines Garrod mentioned (antibiotic sensitivity tests) - nobody there who could do the work (establishing collection of strains of bacteria with different degrees of antibiotic resistance) and there is no room - suggests people whom Garrod might approach. 18 October 1961