s 
c 
19 84 
21c 
Hudson River, New York 
s 
c 
1985 
211 
Hudson River, New York 
s 
c 
1986 
21e 
Hudson River, New York; from mud 
s 
c 
198 T 
21f 
Hudson River, New York 
s 
c 
1988 
21g 
Hudson River, New York 
s 
c 
1989 
21h 
Hudson River, New York 
s 
c 
1990 
211 
Hudson River, New York 
s 
c 
1991 
21J 
Hudson River, New York 
s 
c 
1992 
21k 
New York, New York; mud of > 
docks 
s 
c 
1993 
211 
Hudson River, Hyde Park, New York; mud 
s 
c 
199b 
21m 
Hudson River, New York 
s 
c 
1995 
21n 
Hudson River, New York 
s 
c 
1996 
22a 
Greenport, New York 
s 
c 
1997 
22b 
Greenport, New York 
s 
c 
1998 
22c 
Greenport, New York 
s 
c 
1999 
22d 
Greenport, New York 
s 
c 
2000 
22e 
Greenport, New York 
s 
c 
2001 
22f 
Greenport, New York 
s 
c 
2002 
22g 
Greenport, Long Island, New 
York; salt 
s 
c 
2003 
22h 
Greenport, Long Island, New 
York 
s 
c 
200 U 
22i 
Greenport, Long Island, New 
York 
s 
c 
2005 
22j 
Greenport, Long Island, New 
York 
s 
c 
2006 
23a 
West Point, New York 
s 
c 
2007 
23b 
Catskill Pond, New York 
s 
c 
2008 
23c 
Round Pond near West Point, 
New York; 
s 
c 
2009 
23d 
Mill Pond, West Point, New 
York 
s 
c 
2010 
23e 
Mill Pond, West Point, New 
York 
s 
c 
2011 
23f 
Mill Pond, West Point, New 
York 
