INDEX 



419 



Corn — continued: 



ancestors of, 38. 



botanical characters of, 30. 



breeding plot of, 90. 



cultivation of, 75. 



culture of, S9. 



dent corn, 42. 



ears of, 36. 



ear-to-row test, 88. 



exports of, 56. 



fertilization of, 60. 



field selection of, 87. 



flint corn, 43. 



flowers of, 34. 



fodder, 78. 



fungous diseases of, 96. 



grading seed, 71. 



harvesting of, 76. 



history of, 29. 



improvement of, 82. 



insect enemies of, 93. 



judging of, 92. 



kernels of, 37. 



leaves of, 33. 



loss in store, 81. 



manufactured products of, 51. 



multiplying plot, 91. 



planting of, 71. 



plowing for, 61. 



pod corn, 49. 



pop corn, 44. 



preparing land for, 66. 



production of, 54. 



protecting from rodents, 98. 



roots of, 30. 



rotation of, 59. 



soft corn, 46. 



stand of, 68. 



stem of, 32. 



stover, 78. 



sweet corn, 47. 



testing of seed, 68. 



types of, 41. 



uses of, 50—53. 



value of, 57. 



variety tests of, 83. 



weight per bushel, 46. 



yield of, 56. 

 Corn-root louse, 95. 



Corn root-worm, 95. 

 Cotton : 



adaptation of, 346. 



boll of, 340. 



cultivation of, 349. 



culture of, 348. 



description of, 337. 



fiber of, 340. 



harvesting, 350. 



history of, 336. 



insect enemies of, 351. 



kinds of, 341. 



linter of, 344. 



marketing of, 342. 



oil cake of, 344. 



preparation of fiber, 342. 



production in United States, 346 



production in world, 345. 



Sea Island, 341. 



upland, 341. 



varieties of, 342. 



yield of, 346. 

 Cotton fabrics, 342. 

 Cover crops, 12. 

 Cowpea : 



adaptation of, 314. 



cultural methods of, 315. 



description of, 312. 



distribution of, 314. 



uses of, 314. 

 Credit system, 391. 

 Crimson clover, 272. 

 Crop rotations : 



advantages of, 20. 



at Iowa and Illinois, 16. 



at Rothamsted, 14, 15. 



in Ohio, 18. 



maintaining fertility by, 25. 



planning of, 23. 



suggested rotations, 27. 

 Cultivated plants, 1, 8. 

 Cut worm, 94. 



Daciylis glomeraUi, 210. 

 Dry rot of potato, 369. 

 Durum wheat. 111, 126. 



Early blight of potato, 368. 

 Ear-to-row test, 88. 



