384 University of California Publications in Agricultural Sciences [Vol.3 



.005 .005 .05 .10 .25 .5 1.0 

 mm. -.05 -.10 -Z5 -5 -1.0 -2.0 

 mm. mm. mm. mm. mm. mm. 



Fig. 5. Graph showing the results of the Bureau of Soils method of 

 mechanical analysis on the four samples of Diablo clay adobe. 



