XX LIST OF ILLUSTRATIONS 



FIG. PAGE 



27. A Head and Grains of Bearded Barley . ' . , . . . 74 



28. The Large Clasps of Barley Leaf . . . . . .75 



29. Head and Spikelet of Beardless Barley . . . .76 



30. Roots of Corn 47 Days after Level Planting. (Kansas Ex- 



periment Station) . ,1 ' . . . . 79 



31. Showing Roots of Corn 47 Days after Planting in Deep 



Furrows. (Kansas Experiment Station) . . .81 



32. Brace-roots on the Corn Plant . . . . . 82 



33. Part 6f a Corn Leaf showing Wavy Margins .... 84 



34. An Ear of Corn on which Leaf-blades are borne on the Tips 



of many of the Shucks 85 



35. Differences in Height and Position of Ear in the Same Va- 



riety . . . . ... . . . .87 



36. Diagram showing Course of the Pollen-tube from Silk to 



Ovary. (C. S. Ridgway) 89 



37. The Embryo-sac of Corn at the Time of Fertilization. (F. E. 



Lloyd) 90 



38. A Well-proportioned Ear of a Hard Yellow Variety . . 91 



39. Transverse Section through Corn Grains . . . .94 

 40-45. Ears of Henry Grady Corn to be criticized by pupils. 



(L. N. Duncan) 102-103 



46-57. Ears of Corn with Various Defects. (L. N. Duncan) 104-107 



58. Ear with Long, Well-formed Grains ... . . .108 



59. Ear with Short Grains ... f . . . . 108 



60. An Ear having too much Space between Grains near the 



Cob V - ;. . , . . 108 



61. An Ear in which there is no Lost Space between Grains near 



the Cob . . . . .'..> .. . 108 



62. Showing Variations among Corn Grains . . . 109 



63. Various Shapes of Corn Kernels. (Michigan Experiment 



Station) . . 110 



64. Sections across Grains of Dent, Flint, Pop, Sweet, and Soft 



Corn . . . . 112 



65. Longitudinal Sections through Grains of Dent, Flint, Pop, 



Sweet, and Soft Corn . .... . .113 



66. Showing an Ear with Tip well covered by Shucks . . 115 



67. Showing an Ear Tip not well covered by Shucks . . .115 



