LIST OF ILLUSTRATIONS (Continued) 



Sorghum pagc 



Varieties of Sorghum 138 



Sugar Cane 



Sugar Cane Tassel 135 



Sunflower 



The Familiar Sunflower 97 



A Hybrid Sunflower 99 



Stages of Progress 101 



Sunflower Seeds 104 



Timothy 



Heads of Timothy 79 



Vetch 



Hairy Vetch in the Open Fields 94 



Wheat 



Wheat Germinating on Ice 44 



Mr. Burbank among His 1914 Wheat Experiments 49 



Some Results of 1914 Wheat Experiments 52 



Selected Wheat Heads 55 



Seven-headed Wheat 58 



