1. Vegetation its origin development and structure 2. Methods of studying vegetation 3. Plant succession 4. The units of vegetation 5. Initial causes of succession 6. Migration ecesis and aggregation 7. Competition and invasion 8. Soil in relation to plant development 9. Reaction and stabilization 10. Coaction and conservation 11. Relation of underground plant parts to environment 12. Humidity wind and evaporation 13. Temperature 14. Light 15. Plant response as a measure of environment 16. Adaptation to water 17. Plants and plant communities as indicators 18. Climax formations of North America