238 COTTON CULTURE 



27. Where is cotton mostly sold abroad? Where in the United States? 



28. Describe the cotton boll-weevil and measures of control. 



29. Describe the boll-worm and measures of control. 



30. Describe the following diseases and measures of control: (1) Boll-rot, 



(2) cotton wilt, (3) cotton rust. 



31. Principal uses of cotton. 



32. Name the principal cotton country in last century. At present. 



33. How does cotton rank in importance with other crops in the United 



States ? 



34. Name the most important cotton states. 



35. Give the early history and origin of cotton. 



36. Relate the history of cotton culture in the United States. 



37. Was native cotton found in America? 



38. W T hat influence did the invention of Whitney and Arkwright have on 



the development of cotton culture? 



39. When did cotton manufacture begin in the United States? 



40. Give history of manufacture of cotton after introduction of the power 



loom. 



41. How many species of cotton and where is each grown? 



42. What species is grown in the United States? 



43. Name the types of upland cotton. 



44. Name and describe the principal types of short-staple cotton. 



45. Where is Sea Island cotton grown, and how does it differ from upland 



cotton ? 



46. Describe the parts of a cotton plant in the following order: Appear- 



ance of plant ; branches ; leaves ; flowers ; squares ; bolls. 



47. What proportion by weight is fiber? Proportion of fiber to seeds? 



48. Describe cotton fiber. 



49. How can you distinguish between ripe and unripe cotton fibers? 



50. Compare cotton and wool fibers. 



51. Name the more important factors in judging the value of cotton. 



52. What proportion of seed in lock-cotton ? 



53. State composition of seeds. 



54. Are seeds smooth or fuzzy? 



55. What products are derived from seeds ? 



56. How are oil and oil cake made? 



57. Name the principal food and fertilizing constituents in cottonseed meal. 



58. State value of cottonseed meal for feed ; for fertilizer. 



59. What use is made of cottonseed oil and hulls 'i 



