List of Illustrations xvii 



52. Crop averages in corn breeding for high and for low protein. 



Results of twelve generations. (111. Exp. Sta.) . . 216 



53. Fruit of wild elderberry 217 



54. Fruit of a cultivated variety of the elderberry which ap- 



peared as a variation from the wild form . . .218 



55. Field of wilt-resistant watermelons, growing free from disease 



on infected land (from Yearbook) . . . .219 



56. Disease resistance in cowpeas ...... 220 



57. Improved types of lettuce and the varieties from which they 



were developed ........ 221 



58. Wild cabbage 240 



59. Curled kale . . 241 



60. Collard 242 



61. Brussels sprouts ......... 243 



62. Savoy cabbage 244 



63. Cabbage shapes 245 



64. Swede turnip, kohl-rabi, and cauliflower .... 248 



65. Wild form of Chrysanthemum morifolium .... 249 



66. Wild form of Chrysanthemum indicum .... 250 



67. Pompon anemone type ........ 251 



68. Single type 252 



69. Type of pompon chrysanthemum 253 



70. Japanese anemone type .... ... 256 



71. The small and regular anemone type ..... 257 



72. A pompon chrysanthemum ....... 258 



73. Type of Japanese incurved chrysanthemum . . . 259 



74. Japanese anemone chrysanthemum when fully expanded . 262 



75. New type with short stem 263 



76. Incurved type ......... 264 



77. Hairy type . . . . 267 



78. Japanese type 268 



79. Reflexed type . 269 



80. Bellflower . ......... 270 



81. Flower of white lily 271 



82. Flower of greenhouse cypripedium ..... 272 



83. Flower of niglit-blooming cereus ...... 273 



84. Flower. of the shrubby hibiscus (Hibiscus syriacus) . . 274 



