IN DEX 



PAGE 



Air in field soils 44 



Analysis of soils 80 



Capillary water, its distribution 40 



rise of moisture 46 



rise of moisture interrupted 46 



moisture, continuous rise 50 



moisture, lateral movement 54 



Clay separation 86 



Fertilizers retained in soils 70 



Flow of air in soils 42 



Hygroscopic moisture 10 



in the field 12 



Laboratory desk outfit 3 



Lime flocculates soils 68 



Lime and clay soils 68 



Mechanical analysis of soils 6 



bottle method 80 



centrifugal method 84 



Mulches, effect of, on evaporation 60 



Evaporation controlled by 60 



Absorptive power of 64 



Organic matter 90 



Report on 91 



Determination of 9^ 



Percolation of water 32 



Pore space, determination of 26 



Calculation of 28 



Physical properties of soils 1 



Sand 88 



Silt 88 



Soil samples 9° 



Directions for taking 96 



Apparatus for sampling 9° 



Eye-piece micrometer 99 



lOI 



