1. Historical introduction;Florey,1949
2. The relation of p-aminobenzoic acid to the mechanism of the action of sulphanilamide;Woods;Brit. J. Exper. Path.,1940
3. On the antibacterial action of cultures of a penicillin, with special reference to their use in the isolation of B. influenzae;Fleming;Brit. J. Exper. Path.,1929
4. Observations on the mechanism of action of penicillin;Hobbey,1942
5. Morphological effects of penicillin on bacteria;Gardner;Nature,1940