TABLE OF CONTENTS 



PAGE 



PREFACE v 



AGRICULTURAL LITERATURE x 



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 



XI. Water in the Soil 67 



XII. Relation of the Plant to the Chemical Composition 



of the Soil 77 



XIII. Improving the Chemical Nature of the Soil . . 83 



XIV. Productiveness of Soils ........ 95 



XV. Rotation of Crops 100 



XVI. Relations of Plants above Ground 103 



XVII. The Office of Flowers Ill 



XVIII. Pruning and Training of Plants 118 



XIX. Propagation of Plants 129 



XX. Improving Plants and Seeds 139 



XXI. Fungus Diseases of Plants 148 



XXII. Insects of the Farm 155 



XXIII. Some Special Injurious Insects 167 



XXIV. Useful Insects 176 



XXV. Wild Birds and Other Insect-eating Animals . . 180 



(viii) 



