INDEX. 



I'AOK 



Abbassia, evaporation and humidity at 14 



Aboukir 189 



air. Sec atmosphere. 



alluvial soil 21, 23 



alumina in Nile mud 24, 228 



soils 24, HI 



ammonia in atmosphere 10 



changes of in soil 63 



fixation ,, .. 34 



sulphate of 290-292 



analysis of soils 29. 37 



animals affected by changes of temperature 18 



Archimedian Screw. Srt>. Snvw. 

 11 ard." >SVv crd.'" 

 ' asfar." 



Assuan dam 152 



Atfeh ISO. 191 



atmosphere as weathering agent 21 



composition of 7 



of soil 26, 43, 73. 76, 221 



when dry, effect of 15 



available plant food 28, 29, 37, 81-82, 216 



bacteria 17, 58-68 



affected by tillage 88 



denitrifying 63 



nitrifying 63 



of leguminous plants 76 



"badala" 168 



"baitana" 94, 129 



barley 78, 152 



Barrage 153 



basic slag 303-304 



basins of Upper Egypt . . A 22, 150 



beans 152 



beds for irrigation 96 



berseem 77, 100, 157, 219 



blood (as manure) 2 SO 



hones . *2. 280, 298 



