CONTENTS 

 CHAPTER XII 



DISEASES OF COTTON ...... 



Cotton Wilt: Occurrence, 171; Cause, 172; Symp- 

 toms, 173; Remedies, 174. Cotton Root-rot: Occur- 

 rence, 175; Cause, 176; Symptoms, 177; Remedies, 

 178. Rqot-knot: Occurrence, 179; Cause, 180; Symp- 

 toms, 181; Remedy, 182. Cotton Anthracnose: Oc- 

 currence, 183; Cause, 184; Symptoms, 185; Remedies, 

 186. Mosaic Disease: Occurrence, 187; Cause, 188; 

 Symptoms, 189; Remedies, 190. 



CHAPTER XIII 



MAIZE oft INDIAN CORN ...... 



Description of the Corn Plant: The root-system, 191 ; 

 Structure of roots, 192; Adventitious roots, 193; 

 Stems, 194; Structure of the stem, 195; Tillers, 196; 

 Leaves, 197; The flower, 198; The pistillate flowers, 

 199; The ear, 200; The kernels, 201. 



Xlll 



PAGE 



141-149 



150-160 



CHAPTER XIV 



PHYSIOLOGY OF THE CORN PLANT .... 161-172 



Composition of the Corn Plant: Composition, 202. 

 Water Requirements: Leaf surface, 203; Figuring the 

 leaf surface of a corn plant, 204; Conditions affecting 

 water requirements, 205; Amount of water required, 

 206. Growth: Growth, 207; The factors of growth, 

 208; The growth of roots, 209; Growth of stems, 210; 

 Growth of leaves, 211. Reproduction: Fertilization, 

 212; Double fertilization, 213; Development of the 

 ear, 214. 



CHAPTER XV 



ORIGIN, CLASSIFICATION AND VARIETIES OF CORN . . 173-186 



Nativity, 215; Biological origin, 216. Classifica- 

 tion of Maize: Zea Mays canina, 217; Zea Mays 

 tunicata or pod corn, 218; Zea Mays everata, the 

 pop-corns, 219; Zea Mays indurata, the flint corns, 



