1SUEX. 319 



PAGE 



*ulphur in .soil 30 



rmlphates 89 



of ammonia 82, 290-292 



of potash 82, 306 



superphosphate 77, 82, 29J-3J3 



surface tension. See capillarity. 



-uspended matter. Se-c mud. 



symbiosis t>4-ii7 



v4 taboot " 176-178 



"tahV' 64. 77, 82, 2,35-272 



" tamboor." !<ee screw, 



Tantah, soil from 24 



s tara" 176-177 



' techbeech " 86 



temperature of air 12, 21, 220 



of soil 41, 42, 77, 95, 220 



tenacity 38-40 



texture 37. 48 



thinning of crops 105, 108 



thistle 105 



thrashing 138 



tillage 81, 8(5-105 



transpiration 18, 58 



unavailable plant food 27 



urine 62. 242-244 



vegetables 82 



vegetation 11 



vetches . 152 



waboor" 168 



warping 81, 103-164, 202-203, 225 



washing of .soil 81, 200-201 



water as a weathering agent 20, 150 



-capacity 38, 57. 77, 78 



evaporation of 11 



in soil 44-58, 150 



-logging. See infiltration. 



raised by soil 38 



removed from soil by crops 47, 157 



retained by soil 3S, 21S 



-table 45, 48-58 



well 45 



