LIST OF ILLUSTRATIONS 



A Good Type of a Four-year-old Alfalfa Plant . 

 Alfalfa Plant and Roots Showing Bacteria Nod- 

 ules 



Tubercles on Clover Roots . 



Peculiar Nodules in Groups on Small Rootlets 



Alfalfa Roots Showing Normal Nodules 



And There's Still More to Follow . . 



Dead Prairie Dogs 



Pot Culture Experiments at University of 

 Six Months' Growth of Alfalfa Foliage 

 Cutting Alfalfa in Southern California 

 Baling Alfalfa in Southern Oklahoma 

 A 400-ton Rick of Alfalfa .... 

 A Cable Derrick, Provided with a Grappl 

 Sweet Clover {Melilotus alba) 

 Yellow Trefoil {Mcdicago lupulina) 



Illinoi 



e Fork 



XI 



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