DISC 1
1. Introduction
2. What is Soil?
3. Successional Systems
4. Deserts to Grasslands: Biomass and Numbers of Individuals
5. Deserts to Grasslands: Number of Species of Functional Groups
6. Species Diversity in Early Successional Systems
7. Species Diversity in Late Successional Systems

DISC 2
1. Agriculture: How We Got Where We Are
2. An Improved Foodweb Means Increased Yields
3. Different Crops Require Different Foodwebs: Examples From the Field
4. Summary