1 Table of Contents: “... Reference to Burkina Faso -- 42. Incorporating Tree and Shrub Species into Small Scale Farming Systems...”

2 Table of Contents: “... Wet and Dry Scrubbing -- 1. Introduction -- 2. Wet Scrubbers -- 3. Dry Scrubbers -- 4. Practical...”

3 “... is estimated at about 170,000 km2 with some sixty species of trees and shrubs exclusive to the habitat...”