CONTENTS:- Introduction; Division I: The Atmosphere as Related to Vegetation: 1. Atmospheric Air as the Food of Plant; 2. The Atmosphere as physically related to Vegetation. Division II: The Soil as related to vegetable production: 1. Introductory; 2. Origin and Formation of Soils; 3. Kinds of Soils, Their definition and classification; 4. Physical Characters of the Soil; 5. The soil as a source of food to crops: Ingredients whose elements are of atmospheric origin; 6. The soil as a source of food to crops: Ingredients whose elements are derived from rocks.