Description | Includes: 8 December, Drs Dawson, Meyer and Hobby at the Presbyterian Hospital, New York (penicillin assay, penicillin production by Schering and by Pfizer, cooperation of firms, clinical trials of grammicidin) 10 December, Charles Pfizer and Co, Brooklyn (production of penicillin) 12 December Squibb Institute (cooperation of Squibb and Merck, use of corn steep liquor in penicillin production, extraction process). |