Machine derived contents note: Preface to the First Edition. -- Preface to the Second Edition. -- Acknowledgements. -- Units and References. -- 1. General Introduction. -- 2. Organizing Concepts. -- 3. Hunter-Gatherers. -- 4. The Development of Agriculture. -- 5. Advanced Solar Agriculture. -- 6. Industrialism: Energy after the Nineteenth Century. -- 7. Industrialisation: the Impact on Related Systems. -- 8. New Energies, New Thinking?. -- 9. Meditations. -- Index