INDEX. 



Page. 



Arizona, Efiyptiaii cotton, early planting to control growth 15 



Bees, factor in cross-pollination of cotton 23, 24, 27 



"Black-land" prairies of Texas. SeeTexafi, "black-land" prairies. 

 Cessation of weevil injuries. See Weevils. ' 

 Columbia cotton. See Cotton, Columbia. 



Communities, organization for culture of cotton 10, 15, 24, 26, 27 



Conclusions of bulletin 25-27 



Cotton, big boll, comparison with small-boll varieties 20-21 



Columbia, origin and characteristics 23 



cultural methods as related to weevil resistance S, 10-12, 13-16, 25-26 



culture in blowing soils 14-15 



dry regions 7, 10-12, 25-26 



humid regions 18-19. 25-26 



Texas. See Texas, cotton culture. 



destruction of stalks in autumn 15, 16, 17 



determination of earliness 20 



different types of earliness 19-21, 26 



early big-boll varieties 20 



Egyptian, early planting 15 



extension of culture to drier regions 7, 12, 24 



factors of weevil resistance 7, 10, 21-22, 24-27 



Foster, origin and characteristics 23 



habits of growth, relation to weevil resistance 16-18, 23 



Improvement by cultural methods 13-14 



irrigation 12, 13-14 



Kekchi, habits of growth 16, 17, 18 



King, carried to Texas 20 



limitations of late planting for weevil resistance 15-16 



long staple, cultural recpiirements ] 3-14, 22-24, 27 



Mexican type, habits of growth 17, 18, 20 



planting early and late 7, 8, 10-12, 1.3-16, 25, 26 



relation of soil to weevil injuries 22, 24-25 



root-rot, relation to late planting 16 



short staple, comparison with long-staple varieties 22-24, 27 



small boll, comparison with big-boll varieties 20-21 



Triumph, habits of growth 14, 16-17 



Upland varieties compared with Egyptian 15 



weevil injuries, relation to weather 22 



See also Drought and Weather. 



resistant habits of growth 16-18 



Drought, importance in humid regions 18-19 



relation to injuries to cotton by weevils 7, 8-10, 18-19, 22, 25-26 



220 29 



