CONTENTS Continued 



CHAPTER PAGE 



VI OATS . . . . 90 



Importance of oats as a crop The oat region 

 Types of oats Problems and experiments Rais- 

 ing the crop Harvesting and thrashing Insect 

 enemies and diseases Topics for investigation 

 Wheat and oat demonstrations Play contests 

 Club projects. 



VII COTTON 107 



The cotton plant Region for growing cotton 

 Raising the cotton crop Picking cotton Ene- 

 mies of the cotton crop Topics for investigation 

 Cotton demonstrations Play contests Cotton 

 club projects. 



VIII THE POTATO 120 



Origin Plant and tuber Potatoes as a farm 

 crop The potato region Growing the crop 

 Harvesting and storing potatoes Seed selection 

 The "tuber-unit" method Potato enemies 

 Problems and experiments Potato demonstra- 

 tions Play contests Potato clubs. 



IX TOBACCO CULTURE 135 



The tobacco region Uses and classes of tobacco 

 Raising the crop Insect enemies Topics for in- 

 vestigation Demonstrations. 



X SUGAR FARMING 145 



The importance of sugar as food Sugar-raising 

 regions Varieties of sugar Producing cane 

 sugar Harvesting and manufacturing Growing 

 sugar beets Sugar beets in the dry region Pro- 

 ducing saccharine sorghum Maple sugar Topics 

 for investigation Sugar demonstrations Play 

 contests Sugar club projects. 



XI FORAGE CROPS 157 



The place of forage crops Important grasses and 

 legumes Region arid extent of forage crops 



