I 



2 



5 

 10 



20 1- 



.? 30 



5 



40 - 



m 



^ 50 



<u 



if 60 

 ^ 70 



80 



90 

 95 



98 - 



99 

 phi 



Collection Dote 



14 Mar. 1973 

 12 June 1973 

 27 Aug. 1973 

 25 Sept. 1973 



Sample No. 



4 

 5 



1,6 

 2,3 



7 

 ^m 7.8 



Figure D-2. 



8 

 3.9 



9 



1.95 



Stokes' Diameter 



10 

 0.98 



0.49 



Particle-size distributions of natural Patuxent River silt 

 samples (two replicate determinations) collected by anchor 

 dredge at Long Point. 



85 



