1. The importance and nature of plant products 2. Fibers and fiber plants 3. Forest products wood and cork 4. Forest resources 5. Tanning and dye materials 6. Rubber and other latex products 7. Gums and resins 8. Essential oils 9. Fatty oils and waxes 10. Sugar starches and cellulose product 11. Medicinal plants 12. The Fumitories masticatories 13. the history and nature of food plants 14. The major cereals 15 The minor cereals and small grains 16. Legumes and nuts 17. Vegetables 18. Fruits of temperate regions 19. Tropical fruits 20. Spices and other flavoring materials 21. Beverage plants and beverages