XX CONTENTS 



PAGE 



Insects 35 8 



Mexican cotton-boll weevil, p. 359; Cotton-boll worm, 

 p. 360; Cotton worm, p. 360. 



Fungous Diseases 361 



Diseases, p. 361 ; Root knot, p. 362 ; Cotton wilt, p. 



362 ; Black rust, p. 363 ; Anthracnose, p. 363. 

 Collateral Reading 363 



CHAPTER XXI 



FIBER CROPS 



Cotton 



Production and Marketing 364 



Cotton Crop of the World 364 



Cotton in the United States, p. 364; Center of cotton 

 production, p. 366; Production per population, p. 

 366; Exports of cotton, p. 367; Imports of cotton, 

 p. 368; Gins, p. 369; Bales, p. 370; Presses, p. 370; 

 Ginning, p. 371. 



Marketing 372 



Commercial grades, p. 373 ; Yield, p. 374 ; Price, p. 375. 

 Collateral Reading 375 



CHAPTER XXII 



FIBER CROPS 



Cotton 



Uses and History 376 



Lint .376 



Manufactories, p. 377; Seed, p. 378; Oil, p. 379; Cot- 

 ton-seed meal, p. 381; Hulls, p. 383; Stalks, p. 383. 



History 384 



Practicums 384 



Study of cotton plant in field, p. 384; Study of cotton 

 in the laboratory, p. 385 ; Crossing cotton, p. 386. 

 Collateral Reading 386 



