Contents xix 



CHAPTER XII 



PAGE 



FAMILY CONVOLVULACE^E . . . . .151 



Diseases of the Sweet Potato 



CHAPTER XIII 

 FAMILY CRUCIFEILE . ." . . . i%$ 



Diseases of the Cabbage 

 Diseases of the Cauliflower 

 Diseases of the Horse Radish 

 Diseases of the Kale 

 Diseases of the Mustard 

 Diseases of the Radish 

 Diseases of the Turnip 



CHAPTER XIV 



FAMILY CUCURBITACLE . . . . .218 

 Diseases of the Cantaloupe 

 Diseases of the Cucumber 

 Diseases of the Citron 

 Diseases of the Squash 

 Diseases of the Watermelon 



CHAPTER XV 



FAMILY GRAMINE.E . ' . . . . 250 



Diseases of the Sweet Corn 



CHAPTER XVI 



FAMILY LABIATE . , . . . 255 



Diseases of the Balm 

 Diseases of the Catnip 

 Diseases of the Horehound 



