5 

 10 



20 



I 30 



^40 



^ 50 



« 60 

 iZ 



70 



^ 80 



90 



95 



Collection Dote 



14 March 1973 

 12 June 1973 

 27 August 1973 

 25 September 1973 



Line 



4-4 



5-5 



I - 1,6-6 



2-2,3-3 



98 - 



99«— 

 /i.m 7.8 



8 9 10 



3.9 1.95 0.98 



Stokes' Diameter 



II 



0.49 



Figure A-2. Particle-size distributions of natural Patuxent 



River silt samples (two replicate determinations) 

 collected by anchor dredge at Long Point. 



47 



