Chronology.- Abbreviations.- Preface and acknowledgements.- 1. Introduction.- 2. l-Physostigmine (eserine).- 3. l-Physovenine.- 4. l-Eseramine.- 5. l-N(8)-Norphysostigmine.- 6. l-Geneserine.- 7. 1H-, 13C- and 15N-Nuclear magnetic resonance spectra of the alkaloids of the Calabar bean.- 8. Other alkaloids of, as yet, unknown structures that have been isolated, or allegedly so, from the Calabar bean.- 9. Non-alkaloidal components of the Calabar bean.- 10. Biological activities of the alkaloids of the Calabar bean.- 11. Notes.- 12. References.- 13. Index.