TABLE OF CONTENTS 



PAGE 



PREFACE vii 



AGRICULTURAL LITERATURE xv 



PART I 



CHAPTER 



I. Agriculture and Knowledge 1 



II. Plants and Their Food .- 4 



III. Structure of Seeds 9 



IV. How Seedlings Get Established 12 



V. Plant Substance 24 



VI. How the Plant Increases Its Substance ....... 28 



VII. The Water in Plants 32 



VIII. Structure and Work of Stems . 34 



IX. The Plant as Related to the Soil 40 



X. Soils and Soil Management 52 



XL Water in the Soil 67 



XII. Relation of the Plant to the Chemical Composition 



of the Soil 76 



XIII. Improving the Chemical Nature of the Soil .... 82 



XIV. Productiveness of Soils 94 



XV. Rotation of Crops . 98 



XVI. Relations of Plants above Ground 101 



XVII. The Office of Flowers 109 



XVIII. Pruning and Training of Plants 116 



XIX. Propagation of Plants 127 



XX. Improving Plants and Seeds 137 



XXI. Fungus Diseases of Plants 146 



XXII. Insects of the Farm 153 



XXIII. Some Special Injurious Insects 165 



XXIV. Useful Insects 174 



XXV. Wild Birds and Other Insect-eating Animals .... 178 



(xiii) 



