Description | Says they do not think they can use the photographs of the laboratory production of penicillin in place of the flow diagram - might build up flow diagram using photographs in various parts - are suitable photographs available - asks if Heatley would send a copy of the simplified flow chart. On verso is Heatley's reply: 8 March 1951. Discussed with A G Sanders, possibility of building up flow sheet of early extraction of penicillin from photographs - comments on this - Sanders does not think it would be possible - is sending copy of simplified flow sheet - comments on this. |