Contents xix 



CHAPTER Xn 



PAGS 



Family Convolvdiace^ 151 



Diseases of the Sweet Potato 



CHAPTER Xm 



Family CauciFERiE ... ... 185 



Diseases of the Cabbie 

 Diseases of the Catiliflower 

 Diseases of the Horse Radish 

 Diseases of the Kale 

 Diseases of the Mustard 

 Diseases of the Radish 

 Diseases of the Tumip 



CHAPTER XIV 



Family CcrcuaBiTAC^ ..... 218 

 Diseases of the Cantaloupe 

 Diseases of the Cucumber 

 Diseases of the Citron 

 Diseases of the Squash 

 Diseases of the Watermelon 



CHAPTER XV 



Family Geamixe^ ..... . 250 



Diseases of the Sweet Com 



CHAPTER XVI 



Family Labiate ...... 255 



Diseases of the Balm 



Diseases of the Catnip 



Diseases of the Horehound . 



