Book Contents Part One Physical Geography of Sudan Page 11 • • • • • Spatial Relations: Chapter One 20 • • • • • Geological Structure: Chapter Two 23 • • • Surface Features and Water Drainage: Chapter Three 47 • • • • • The Nile: Chapter Four 76 • Nile Waters Between the United Arab Republic and Sudan: Chapter Five 98 • • • • • . Climate of Sudan: Chapter Six 115 • • • • • Surface Formations: Chapter Seven 135 • • • • • • Natural Vegetation: Chapter Eight Part Two Human Geography of Sudan 151 • • • Human Races in Sudan: Chapter One 171 • • • • Population Distribution and Density: Chapter Two 197 • • • • • • Population Growth: Chapter Three 211 • • • • • • Population Occupations: Chapter Four 246 • • • • • • Nationals and Foreigners: Chapter Five