XX LIST OF ILLUSTRATIONS 



81. Root branching stimulated by pruning 67 



32. Celery plants, showing effect of transplanting on root growth 



(Green) 68 



33. Young clover plant, showing tubercles on roots ... 69 



34. Potato plant, showing old tuber and the different parts . 71 



35. Nodes of box elder and wild grape ..... 72 



36. Twig showing union of new and older wood .... 73 



37. Lateral buds (Barry) 79 



38. Flower-buds of Pottawattamie plum 81 



39. Fruiting branch of European plum (Barry) .... 81 



40. Fruiting branch of Morello cherry (Barry) .... 81 



41. Leaf-buds of apple (Barry) ....... 81 



42. Fruit-bud of apple (Barry) 81 



43. Fruit-spurs of apple (Hardy) 84 



44. Fruit-spur of pear (Barry) 88 



45. Section of cherry blossom ....... 88 



46. Flower of the pea (Baillon) 89 



47. Flower of the pea dissected (Figuier) ..... 89 



48. Stamens and pistil of the pea (Baillon) . . .89 



49. Pistil of the pea (Baillon) . . . . . . . 89 



50. Cross-section of flower-head of sunflower .... 90 



51. Enlarged floret of sunflower ....... 91 



52. Ray -flower of sunflower . . . . . . .91 



53. Spikelet of wheat (La Maont and Decaisne) ... 92 



54. Spikelet of wheat dissected (Prantl) 92 



55. Flower of wheat enlarged (La Maont and Decaisne) . . 92 



56. Imperfect flower of strawberry 95 



57. Perfect flower of strawberry 95 



58. Sun-scald on silver maple tree Ill 



59. Trunk of apple tree inclosed in lath screen . . . .112 



60. Sling psychrometer ........ 122 



61. Lath screen (Bailey) .137 



62. Shed screen (Bailey) 138 



63. Brush screen (Bailey) 138 



64. Board shade for newly set plants ...... 139 



65. Fruit branch of apple grown in light (Kinney) . . . 141 



66. Fruit branch of apple grown in partial shade (Kinney) . 141 



67. Screen-covered frame for protecting melon hills . . . 154 



68. Sifting-box for applying powders 163 



