pt. 1. The evolutionary imperative --1. Darwinism not Neodarwinism -- 2. Darwin's dilemma -- 3. Relative individuality -- 4. The natural selector -- 5. Principles of evolutionary novelty -- pt. 2. The microbe in evolution -- 6. Species and cells -- 7. History of the heritable -- pt. 3.Planetary legacy -- 8. Gaian planet -- 9. Eukaryosis in an anoxic world -- pt. 4. Consortia -- 10. Seaworthy alliances -- 11. Plant proclivities -- 12. Chromosome dance : the fission theory -- 13. Darwin revisited : species in the evolutionary dialogue.