INDEX 



20 1 



Strength of lint affected by water- 

 table, 85 

 correlated with shedding and lint- 

 weight, 85 

 Stunting, delays flowering, 52 

 by sore-shin, 19 

 effect on yield, 95 

 Style, accessibility of, 119 

 fluctuation in, 97 

 length, inheritance of, 159 

 short, 118 

 Sub-soil, variation in texture, 56 



water. See Water-table. 

 Sub-species, of Hindi, 106 

 Substitution, of Upland for Egyptian, 



178 

 Subterranean research, 180 

 Subtraction-method of determining 



shedding, 66 

 Sudan. Nyam-Nyam Kidney, 97 



old cottons in, 2 

 Sunset, closure of stomata at, 43 

 Sunshine, effect of on growth, 26 

 and shedding, 69 



effect, probably limiting root-growth, 

 37 

 excluded by nets, 118 

 killing cut stems, 45 

 limited by size of root, 36 

 on lint-oell-wall, 84 

 suppressed, 60 

 possible effect on lint, 81 

 rarely limiting photosynthesis, 51 

 Btomata opened in, 41 

 Superior plants from sowings on criti- 

 cal date, 53 

 Supply of pure seed, 178 

 Surface climate, 15, 44 

 Susceptibility to vicinism, 120 

 Symmetry of leaf, 50 

 Sympodia, 62 

 Systematy, 5 



L t, see Angles 



Tammes, 136 



Tank experiments, 74 



Tap-root. See Root. 



Target-diagram, of varietal composi- 

 tion, 111 



Temperature, accumulated, 29 

 affecting maturation of boll, 66 

 and growth, 20 

 and growth, summary, 26 

 controlling sore-shin, 18 

 controls root-growth in field, 36 

 cotton-worm, 98 

 day, effect on growth, 29 

 effect on sore-shin, 24 

 fog concomitant with low, 44 

 night, effect on growth, 29, 30 

 night, losing control of growth, 60 

 of autumn affecting recovery from 

 worm, 98 



Temperature of leaf, changing rapidly, 

 48 



of plant raised by water shortage, 50 



of soil, 15, 16 



of tissue, 47 



regulation of internal, 48 

 Temperature-acceleration of growth, 



21,25 

 Terrace experiment, 71 



experiment, lint from, 84 

 Testa, weight of, 100 

 Texture of lint-oell-wall, 84 

 Thermic effects. iSee Thermotoxy 

 Thermo-electric measurement of mioro- 



scope-field-temperature, 20 

 Thermo-regulation of tissue tempera- 

 ture, 48 

 Thermotoxy, reducing correlation be- 

 tween night-temperature and 

 growth, 30 



affecting flowering, 62 



checking growth of stem, 29 



definition, 25 



from water-shortage, 50 



hastens senescence of leaf, 48 



inheritance of liability to, 152, 154 



liability to, 59 



recovery from effects, 25 

 Thickening of lint-cell-wall, 84 

 Thoday, 50 

 Thomas, 85, 148 

 Thread-rings in nucleus, 10 

 Three hundred and ten, "310." <See 



Pure strains 

 Three-lobed leaves, 96 

 Tilth, effect on seedling, 31 

 Time, economy of, in methods, 91 



of sowing. See Sowing date. 

 Tissue temperature and shedding, 69 

 temperature raised by stomatal 



closure, 50 

 temperature, raised by water- 

 shortage, 50 

 Tissue temperatures, 47 

 Todd, for Economics of Egyptian 



Cotton, 176 

 Toxic excreta from sore-shin, 23 

 Toxin, possible, in style, 122 

 "Transmitting power," 108 

 Transpiration, 44 



excessive, causing shedding, 69 



factors controlling, 46 



rate in field, 45 



regulated by stomata, 39, 46 



severe in July, 78 



stomatal movements affecting, 42 



uniform during morning, 46 

 Tree cottons, disappearance of, 4 

 Triple nucleus, 12 

 Twisting of lint, due to pits, 84 



Unifobmity of family, not affecting 

 seed- weight, 100 



