Letter from S P K Gupta, New Delhi to Howard Walter Florey Thanks for information about SubbaRow's work on penicillin and about Lederle penicillin - comments on meeting of government laboratories and pharmaceutical companies about penicillin in December 1941 - comments on visit of Florey and Heatley to Lederle - was told that statement by Merck, Squibb and Pfiizer that they alone had facilities for penicillin work, led to Lederle dropping out of co-operative effort - would like reprints on penicillin chemistry. 27 January 1967