An examination of what happens when you see, covering how your eyes form pictures, how they focus on objects close up or far away, and how they let you see in colour. There are photographs of children with cutaway illustrations of the body in an identical pose, to demonstrate how the eyes work.
Shows smallholders how to deal with the various pests that are capable of decimating crops, degrading pasture, stealing produce, contaminating animal feed and killing valuable livestock. This book provides the smallholder with the knowledge and the information about the skills to meet this challenge in an effective and humane way.