PRACTICE XIX (Continued) 



Each stiident-i\iay secure the specific heat of the stock soils 

 other than his own Irom members of the class and tabulate in 

 guide and on data sheet for comparison. 



What is the effect of water or organic matter in soil on its 

 specific heat ? 



References. 



'^The Soil/' Hall, pp. 128-129. 

 " Soils," Ililgard, p. 801. 



Soil 



Weio-ht of ^Yel2:llin2: bottle and soil 



Wei2:ht of bottle 



M = Wei2:ht of water-free soil 



T = Temperature of soil 





t = Temperature of water in calorimeter 

 before receiving soil 





= Constant temperature of water and soil ' 

 mixed in calorimeter . : 





m r= Grams of water used + water value of 

 calorimeter 



C = Specific heat 



Formula = C = 



m (0 - 0' 

 M{T-0) 



SPFXTFIC HEAT OF STOCK SOILS 



Soils 



Dry 



Wet 



Sand or sandy loam 



Gray silt or gray silt loam 







Brown silt loam 







Clay or clay loam 







Peat 







41 



