LIST OF ILLUSTBATIONS. 



VU 



rig. 



42. 



43. 



44. 



45. 



46. 



47. 



48. 



49. 



50. 



51. 



52. 



53. 



54. 



55. 



56. 



57. 



58. 



59. 



60. 



61. 



62. 



63. 



64. 



65. 



66. 



67. 



68. 



69. 



70. 



71. 



72. 



73. 



74. 



75. 



76. 



77. 



78. 



79. 



80. 



81. 



82. 



83. 



84. 



85. 



86. 



87. 



90. 

 91. 

 92. 

 93. 



Extra large hazel seedling or round Engllsli filbert, 



Filbert orchard strucli: with blight, fifth year from seed, 



Hazel fungus, ..... 



Fourteeu-years-old pecan tree in Mississippi, 



Leaf and sterile catkins of shellbark hickory, 



Western shellbark, .... 



Section Western sliellbark, 



Leaf of pignut, ..... 



Bitternut brancli and leaf, 



Bitternut, ..... 



Large, long pecan nut. 



Oval pecan nu t, . 



Small oval pecan nut, 



Little Mobile pecan nut, 



Stuart pecan nut, .... 



Van Deman pecan nut, 



Kisien pecan nut, .... 



Lady Finger pecan nut, 



The original Hales' Paper-shell hickory ti-ee. 



Hales' hickory, .... 



Section of Hales' hickory, 



Long shellbark liiclcory, 



Sliellbark Missouri, .... 



Long Western shellbark. 



Fresh Nussbaumer hybrid, 



Nussbaumer's hybrid, . . . . 



Crown grafting on roots of the hickory, 



Sprouts from severed hickory roots. 



The hickory-twig glrdler, . 



Hickory borer, .... 



Burrows of hickory scolytus, 



Persian walnut, showing position of sexual organs, 



Bearing branch of English walnut. 



Seedling walnut. 



Flute budding, . . . • 



Flowering branch of hybrid walnut. 



Hybrid walnut, . . . • 



Hybrid walnut, shell removed, 



Jiiglans Sieboldiana raceme. 



Black walnut in husk, . 



Juglans nigra, husk removed, . 



Jtiglans Califomica. 



Juglan) nipestris, showing small kernel 



Juglans Sieboldiana, . 



Juglans cordiformis. 



Small fruited walnut, . 



Barthere walnut, . . • • 



Chaberte walnut, 



Chile wnlnut", . . . • • 



Cnt-leaved walnut. 



Gibbous walnut, . . • • 



Mayette walnut, 



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