25 



"Solar heat is reflected from the hardened surface." 



" Irrigation applies water to the surface crops do not 

 want water on the land but in it." 



" Rain water will pass through loosened soil by gravi- 

 tation, leaving the soil moist, and as the upper surface is 

 dried by evaporation caused by the heat of the sun, tho 

 water lost by evaporation will be replaced by water rising 

 in the loosened land by capillary attraction." 



" Liebeg says. The outermost crust of the earth is des- 

 tined for the development of organic life and its broken par- 

 ticles are endowed by the wisest arrangement with the 

 power of collecting all the elements of food which are essen- 

 tial for the purpose." 



" I look on capillary attraction iu solis as the power 

 the soils possess of containing moisture in the interstices be- 

 tween their minute particles and I consider the retentive 

 power of soils to be the power which they possess of retain- 

 ing moisture in their very particles." 



Captain C. S, Thomason, R. E., in his essay dated Agra, 

 13th December 1871, says 



" The more water that can be passed through the soil 

 the better so long as it does not remain in it." 



" Subsoil drainage combined with deep culture enables 

 land to withstand drought." 



" If an (impervious) pan underlies soil how can water 

 pass through." 



" Deep cultivation will avert a considerable amount of 



heat radiated from the earth." 



D 



