78. Pistillate flower and perfect flower of strawberry 137

79. A crop of cowpeas 178

80. Red clover 179

81. Soy-beans in young orchard 182

82. A young alfalfa plant just coming into flower 183

83. Cross-sections of stone-drains 238

84. Cross-section of a pole-drain and of a tile-drain 238

85. A collection of drainage tools 239

86. A poorly laid tile-drain and a properly graded
tile-drain 239




PART I

General Principles Underlying Plant Culture