Letter from Howard Walter Florey to A C C Newman, Wellcome Foundation Limited, Euston Road, London Thanks for offer of assistance with preparation of secretin - position concerning this has changed since Mr Love was in department - suggests that Newman should come and talk with Abraham, Heatley and Newton who are doing chemical purification and assay work - suggests Newman might come on 31 May or on 4 or 5 June. 25 May 1957