SETTLING VELOCITIES IN MICRONS PER SECOND 



COARSE MEDIUM 



SAND SAND 



DIAMETERS IN MICRONS 



I MEDIUM 1 FINE 

 I SILT I SILT 



SETTLING VELOCITIES IN MICRONS PER SECOND 



FINE VERY FINE COARSE 

 SAND SAND SILT 



ERY FINE COARSE MEDIUM 

 SILT CLAY CLAY 



^ERY FINE- 

 CLAY 



DIAMETERS IN MICRONS 



COARSE 

 SANO 



MCDIUM 

 SAND I 



FINE 

 SANO 



VERY FINE COARSE 

 SANO SILT 



MEDIUM 

 SILT 



FINE 

 SILT 



VERY FINE 

 SILT 



COARSE 

 CLAY 



MEDIUM 

 CLAY 



FINE 

 CLAY 



VERY FINE 

 CLAY 



FIGS. 25-26— SETTLING VELOCITIES IN MICRONS PER SECOND AT 20 °C, SAMPLES 40 AND 43 



146 



