LIST OF PLATES 



ATE FACING PAGE 



I. Panicles of Canada Blue-grass and Kentucky Blue-grass 164 



II. A Field of Gooseneck Sorgo in Texas . . . . 266 



III. Sudan-grass and Natural Hybrids . . . , . . 280 



IV. A Field of Sudan-grass in Virginia . . . . .282 



A Field of Sumac Sorgo in Texas 



A Field of Red Clover in Washington State 

 VI. Hairy Vetch and Rye ....... 474 



VII. Groit Cowpeas in a Broadcasted Field in Virginia . . 496 



VIII. Seeds of Soybeans, Cowpeas, Velvet-beans, Pods of 



Florida Velvet-bean and Yokohama Bean . . . 510 



