31* LSDEX. 



I'AGK 



sandy soil 95 



screw Archimedean 107, 178 1 \(\ 



seasons . . ! 151 



"sfbacli " 81 



sesnme 7,x. 83 



sewage 77. 82. 274-280 



"shadoof" 107, 171-173 



"sharshara" 132 



shrinkage of soils 39. 49, 50, 78 



sickle 182 



silicates in soil 35 



silt, tiec mud. 



slag 303-301 



smoke 11 



snow 15 



soda in Nile mud 24. 277, 233 



in soils 24, 32 



.-odium chloride 32-31, 19 



carbonate 32, 51 



nitrate 31. 77. 81, 89, 209 



sulphate 33 



soil alluvial 20-73 



composition of 21, 23 



atmosphere of 43. 41. 7, 221 



cultivation of 75, 108 



clay 25, 7S 



definition of 20, 75 



Egyptian 21. 70. 79 



formation of 20-22 



heavy 22, 4.0 



light 22 



parts of 2l-?.5 



plant food in 30 



puddling of 91 



sandy 25. 77 



specific gravity of 39 



temperature of 4, 220 



water of 41-58, 72 



soluble plant food 1'7 



-owing 106 107 



machines 123 



star grass 105 



steam plough ; 110 



subsoil 31. 75 



snbsoiling 93 



sugar-cane 12. S2. s3. 152 



sulphur as plant food v>x 



