href="@public@vhost@g@gutenberg@html@files@16900@[email protected]#fig_46" class="pginternal" tag="{http://www.w3.org/1999/xhtml}a">To show how deeply seeds should be planted

87 47. Operations of seed-planting 88 48. A collection of planting machines 89 49. Spading-fork and spade 92 50. A wood beam-plow 93 51. A slip-nose share and a slip-nose 96 52. A straight knife coulter 96 53. An iron beam-plow with rolling coulter and double clevis 96 54. A rolling cutter-harrow 97 55. Spring-toothed harrows 97 56. Spike-toothed harrows 104 57. A coulter-toothed harrow 104 58. A plank harrow 105 59. To show transpiration 108 60. Amount of transpiration 109 61. To show that growing leaves contain starch 114 62. To show that starch disappears from the leaf when the plant is placed in the dark 114 63. To show that sunlight is necessary for starch-making by leaves 115 64. To show that chlorophyl is necessary for starch formation in the leaf 115 65. To show the giving off of gas by leaves, and that sunlight is necessary for it 118 66. Seedling radishes reaching for light 119 67. Elm leaves injured by the "imported elm-tree leaf-beetle," a chewing insect 119 68. A horse-chestnut stem, showing leaves, buds, and scars, where last year's leaves dropped off 128 69. An underground stem. Buds show distinctly 129 70. Flower of cherry 130 71. Flower of apple 130 72. Pistil and stamen of flowering raspberry 131 73. Flower of buttercup 131 74. A magnolia flower showing central column of pistils and stamens 134 75. Flowers of squash 135 76.