XVill ILLUSTRATIONS 
FIG. PAGE 
29. Fly-speck of apple. ‘ < 2 . 106 
30. Crown-gall on apple-roots fey of Vie 3. Stewart) F yi . 109 
31. Hairy-root of apple (courtesy of V. B. Stewart) . : : - 110 
82. Apple pink-rot . . : 3 : ; : : : . 118 
33. European apple-tree paiikee ‘ : : : , : F . 127 
34. Superficial bark-canker . F : ; , : , 5 . 131 
35. Spongy dry-rot . , ‘é : ; . 138 
36. Hypochnus leaf-blight puthopsrte (after Stevens) 2 : : . 185 
37. American brown-rot of apple-fruit . ; zi F a ; « 141 
38. European brown-rot canker of apple : : : é . . 143 
39. Rough-bark canker . : . , : 3 . 2 ‘ . 145 
40. Phytophthora-rot of apple F ‘ : 4 : : : . 152 
41. Coryneum blight of apricot-fruit ‘ : F . : : - 155 
42. Coryneum blight of ae : ; ; “ : : - 155 
43. Apricot-rust ‘i A ‘ : : : ‘ 3 ‘ . 156 
44. Black-spot on apricot-leaf . 3 i : : 3 ‘ ‘ . 168 
45. Blackberry crown-gall 5 ‘ : ‘ ‘ ‘ : 3 - 161 
46. Blackberry leaf-spot . 3 5 , “ 3 : : . . 167 
47. Brown-rot on cherry . 5 2 “ ‘ . ‘ ‘ - 171 
48. Cherry leaf-blight . : 173 
49. Powdery-mildew of cherry; healthy and disensed shoots fitean 
V.B. Stewart) . F . : ‘ : - 178 
60. Cherry bacterial-gummosis (after Bares} . : f : : . 183 
51. Witches’-broom on cherry (after F. C. Stewart)  . ‘ ; . 189 
62. Cranberry-scald (after Shear) ~. ‘ S ‘ 5 my OS - 193 
53. Currant leaf-spot z ; : : . : 3 ‘ 3 . 204 
64. Currant anthracnose . : a 5 : % - 5 . 207 
65. European currant-rust, iiredttnis ‘ - é ae: < . 214 
66. European currant-rust, telia . 5 . , - 215 
57. European currant-rust, ecia (courtesy of L. A pana : . 216 
58. Gooseberry leaf-spot . ‘ 5 . 226 
59. Black-rot on grape-berries (eonrteny ‘of Denala Reddick) : . 232 
60. Black-rot op grape-leaf (after Reddick) . F ‘ . é . 233 
61. Downy-mildew on grape-leaf . F : . 238 
62. Downy-mildew on grape-shoot (courtesy of C. T. Gresery) : . 239 
63. Downy-mildew on grape-berries ‘ ‘ . 240 
64. Anthracnose on grape-canes (courtesy of. Donald Reddick) A . 250 
65. Anthracnose on grape-berries (courtesy of Donald Reddick) . . 250 
66. Crown-gall on grape-cane (courtesy of Donald Reddick) : . 264 
67. Dead-arm of grape (after Reddick) . 2 . : : % - 265 
