List of Illustrations xix 



FIG. PAGE 



71. Bermuda-grass . . ....... 173 



72. Head of broom-corn ........ 174 



73. Amber sorghum 176 



74. Orange sorghum 176 



75. Heads of four varieties of kafir ...... 177 



76. Case for storing bottles of seeds ..... 180 



77. Red clover 184 



78. Crimson clover 186 



79. Alfalfa 187 



80. An alfalfa field . . 188 



81. Spotted bur clover 189 



82. Toothed bur clover ..190 



83. Cowpeas 191 



84. Soybeans 192 



85. Base of peanut plant showing the nuts .... 194 



86. Virginia Bunch peanuts . 195 



87. Method of stacking peanut vines ..... 197 



88. Potato-planter . . . 203 



89. Green Mountain potatoes 204 



90. Potato-digger 205 



91. Sweet potato slips ready for setting in the field . . 209 



92. Sweet potato slips in a hot-bed ready to pull for trans- 



planting . 210 



93. Setting sweet potato slips with a transplanter . . . 211 



94. Field of sugar-cane 218 



95. Cotton plant 223 



96. Cotton in the boll . . . . ' . . . .231 



97. Field of tobacco 235 



98. Harvesting tobacco by cutting the stalk .... 236 



99. Peach tree in need of pruning 243 



100. Same tree as shown in Fig. 99 after pruning . . . 244 



101. Sprayed trees .246 



102. Unsprayed trees ,247 



103. Gas-engine sprayer . 248 



104. Hand-power sprayer . ....... 248 



105. Knapsack sprayer . . . . . . . . 249 



106. Rectangular, quincunx, and triangular systems of setting 



orchard trees 257 



107. Nursery trees trimmed for planting ..... 258 



108. Sorting table lined with canvas . . . . . . . 260 



109. Fumigating citrus trees ... . 262 



