INDEX 



447 



Cotton (Continued). 



fertilizers, method of apply- 

 ing for, 92. 

 time of applying for, 92. 



fixation of hybrids, 63. 



flowers, 16. 



forming the ridges for, 107. 



ginning, 118. 



ginning cotton from select 

 plants, 59. 



gins, type of, 118. 



Gossypium, 30. 



Gossypium arboreum, 32, 37. 



Gossypium barbadense, 33, 35. 



Gossypium herbaceum, 31. 



Gossypium hirsutum, 31, 32, 

 33. 



Gossypium Kirkii, 33. 



Gossypium obtusifolium, 32, 

 36. 



Gossypium peruvianum, 32, 

 36. 



Gossypium vitifolium, 36. 



grades, 122. 



grades, values of, 124. 



green-manures for, 96. 



Greenville soil series for, 70. 



growing season, length of, 77. 



guard-cells, functions of, 26. 



Hagerstown loam for, 74. 



harrowing for, 105. 



harvesting, 117. 



heavy seed, advantages of, 108. 



high ranking varieties, 48. 



Houston soils for, 71. 



hybridization of, 62. 



hybridization versus selection, 

 65. 



hybridizing, reasons for, 63. 



improvement by selection, 58. 



insect enemies of, 127. 



intermediate varieties, 46. 



Kalmia fine sandy loam for, 

 76. 



Cotton (Continued). 



King type, 44. 



late tillage, value of, 115. 



leaves, 12. 



functions of, 14. 



limestone valleys and up- 

 lands, soils of, 74. 



lint, 18. 



length and strength of, 19. 



loessial region, cotton soils of, 

 74. 



long-limbed type, 46. 



long-staple upland varieties, 

 46. 



Louisa soil series for, 73. 



maintenance of fertility for, 

 82. 



making second generation se- 

 lections, 61. 



Memphis silt loam for, 75. 



methods of improving, 58. 



Miller soils for, 75. 



multiplication plot, 61. 



nature of hybrids, 63. 



Norfolk soils for, 69. 



numbering second generation 

 selections, 61. 



nutrition, 23. 



absorption of food, 23. 

 carbon, taking up of, 24. 

 necessary energy, 25. 



Ocklocknee fine sandy loam 

 for, 76. 



Orangeburg soils for, 70. 



organic matter for, 96. 



peduncles, 15. 



phosphatic fertilizers for, 86. 



physiology of, 21. 



picking, 117. 



picking machines, 117. 



planting, methods of, 110. 



planting, time of, 108. 



plants, distance between, 116. 



plowing for, depth of, 104. 



