xxvi Illustrations 



FIG. PAGE 



58. POTATO DISEASES 308 



59. DISEASES OF THE POTATO . . 3 J 4 



60. POX OR PIT OF THE WHITE POTATO, SHOWING 



DIFFERENT STAGES OF INFECTION . .315 



61. POTATO DISEASES . . . . 3 22 



62. POTATO DISEASES . . . . 3 2 5 



63. POTATO DISEASES . . . . 33 1 



64. TOMATO DISEASES 34 



65. TOMATO DISEASES ... . 346 



66. TOMATO DISEASES . . . . . 347 



67. TOMATO DISEASES 35 1 



68. SLEEPING SICKNESS OF TOMATO . . 352 



69. CELERY DISEASES 35 6 



70. CELERY DISEASES 357 



71. SPRAY MACHINERY ... . 37 2 



72. PARASITIZED INSECTS. TREATMENT OF FENCE 



POSTS . 37 6 



