List of Illustrations 



Page 



How Good Drainage Works 5 



How Bad Drainage Handicaps . . . 7 



Increasing Potato Yields . . . . 10 



Fertilizing the Cowpea .... 13 



Meadow Fescue and Brome Grass . . 18 



Blue Grass 20 



Meadow Foxtail 22 



Peg-Tooth Harrow . . . . .31 



Header and Thresher ..... 33 



Wheat Harvester ..... 36 



Corn Cultivator ...... 40 



Two-Row Corn Cultivator .... 41 



Beggar Weed ...... 44 



Corn Kernels ...... 47 



A Soil in Need of Nitrogen . . . 55 



Orchard Grass in Bloom .... 66 



Yellow Globe Mangel ..... 70 



A Good Silo 76 



Improving Cotton 85 



Six Ears to the Stalk . . . . .86 



Corn Smut ....... 87 



Seed Corn Room ...... 90 



Improvement of Corn by Selection . . 91 



Effect of Inbreeding of Corn ... 94 



Alsike Clover ...... 103 



ix 



