394 



University of California Publications in Agricultural Sciences [Vol.3 



Moisture 

 Equiv. 



10 



11 



12 



13 



IS 



21 



Hygro. 

 Coef. 



26 Soils 



Moisture 

 Equiv. 



Hygro. 



Coef. 



Soils 



Fig. ]0. Graph showing the results of the determination of the moisture 

 equivalent and of the hygroscopic coefficient on the eight samples of San 

 Joaquin sandy loam and the nine samples of Hanford fine sandy loam. 



Hygroscopic Coefficient. — The determination of this coefficient, 

 also by the Division of Soil Technology, shows no very distinct values 

 for the several tj^pes under consideration (table 11, figs. 9,10). The 

 Diablo clay adobe samples vary from 9.6% to 15.4%, with the average 

 of 13.6%. The Altamont clay loam samples vary from 6.9% to 

 17.9%, averaging 11%. The San Joaquin sandy loam varies from 



