 - Patriotic concert in West Lafayette, Purdue campus 7/4/98 (Lafayette, May 24 - July 12, 1998)
 - Patriotic concert in West Lafayette, Purdue campus 7/4/98 (Lafayette, May 24 - July 12, 1998)
 - Patriotic concert in West Lafayette, Purdue campus 7/4/98 (Lafayette, May 24 - July 12, 1998)
 Fountain of Purdue University Mall. West Lafayette, Indiana, March 10, 1998.
 Purdue University Mall and Bell Tower. West Lafayette, Indiana, February 27, 1998.
 - Purdue campus 6/6/98 (Lafayette, May 24 - July 12, 1998)
 - Purdue campus 6/6/98 (Lafayette, May 24 - July 12, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 - Purdue University campus Sept. 28, 29 (Lafayette, September 12 - 29, 1998)
 Purdue Mall and Administration Hall at Purdue University, West Lafayette IN, 20 June, 1999.
 Fountain of Purdue Mall and Bell Tower at Purdue University, West Lafayette IN, 20 June, 1999.
 S.-w. side of Purdue Mall, view from Electrical Engineering Building. Purdue University, West Lafayette, Indiana, October 29, 1999.
 Purdue Mall, the fountain, and Hall of Administration, view from Electrical Engineering Building. Purdue University, West Lafayette, Indiana, October 29, 1999.
 - The lab in the Department of Chemistry of Purdue University Apr. 25, 28 (Lafayette, April 5 - 28, 1998)
 - The lab in the Department of Chemistry of Purdue University Apr. 25, 28 (Lafayette, April 5 - 28, 1998)
 - The lab in the Department of Chemistry of Purdue University Apr. 25, 28 (Lafayette, April 5 - 28, 1998)
 Purdue University Mall. West Lafayette IN, January 3, 1999.
 Purdue University Mall. West Lafayette, Indiana, October 10, 1999.
 Fountain of Purdue University Mall. West Lafayette, Indiana, September 21, 1999.
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 - Purdue University 8/13/98 - The lab in the Department of Chemistry 9/1/98 (Lafayette, July 12 - September 1, 1998)
 Purdue University Mall during afternoon hours. West Lafayette, Indiana, September 21, 1999.
 Purdue University Mall and Electrical Engineering Building. West Lafayette, Indiana, September 26, 1999.
 Frozen ornamental cabbage at Centennial Mall. Purdue University, West Lafayette IN, January 6, 1999.
 Purdue University Hall and Recitation Building. West Lafayette, Indiana, March 10, 1998.
 Purdue Memorial Union (student services). West Lafayette, Indiana, February 27, 1998.
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 Purdue University Memorial Union from State Street. West Lafayette, Indiana, March 10, 1998.
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 View of Purdue University Mall from the second floor of Electrical Engineering Building. West Lafayette, Indiana, September 21, 1999.
 State Street near Chauncey Hill Mall. West Lafayette, Indiana, March 10, 1998.
 Pablo Serra and Huan Pablo Neirotti at a dinner in a restaurant near Purdue University. West Lafayette, Indiana, February 26, 1998.
 A church at State Street opposite to Chauncey Hill Mall. West Lafayette, Indiana, March 10, 1998.
 Fountain near John Purdue grave, Purdue University, West Lafayette IN, January 3, 1999.
 - Erie, Ferry, State, Valley Street and downtown Lafayette 4/12/98 (Lafayette, April 5 - 28, 1998)
 - Erie, Ferry, State, Valley Street and downtown Lafayette 4/12/98 (Lafayette, April 5 - 28, 1998)
 - Erie, Ferry, State, Valley Street and downtown Lafayette 4/12/98 (Lafayette, April 5 - 28, 1998)
 - Erie, Ferry, State, Valley Street and downtown Lafayette 4/12/98 (Lafayette, April 5 - 28, 1998)
 - Erie, Ferry, State, Valley Street and downtown Lafayette 4/12/98 (Lafayette, April 5 - 28, 1998)
 - Erie, Ferry, State, Valley Street and downtown Lafayette 4/12/98 (Lafayette, April 5 - 28, 1998)
 - Erie, Ferry, State, Valley Street and downtown Lafayette 4/12/98 (Lafayette, April 5 - 28, 1998)
 - Erie, Ferry, State, Valley Street and downtown Lafayette 4/12/98 (Lafayette, April 5 - 28, 1998)
 - Erie, Ferry, State, Valley Street and downtown Lafayette 4/12/98 (Lafayette, April 5 - 28, 1998)
 - Erie, Ferry, State, Valley Street and downtown Lafayette 4/12/98 (Lafayette, April 5 - 28, 1998)
 - Erie, Ferry, State, Valley Street and downtown Lafayette 4/12/98 (Lafayette, April 5 - 28, 1998)
 - West Lafayette 4/12/98 (Lafayette, April 5 - 28, 1998)
 - Lafayette 3/22/98 (Lafayette March 22 - April 5, 1998)
 - Lafayette 3/22/98 (Lafayette March 22 - April 5, 1998)
 - Lafayette 4/5/98 (Lafayette, April 5 - 28, 1998)
 - Celery bog 4/11/98 (Lafayette, April 5 - 28, 1998)
 - Celery bog 4/11/98 (Lafayette, April 5 - 28, 1998)
 - Celery bog 3/29/98 (Lafayette March 22 - April 5, 1998)
 - Celery bog 3/29/98 (Lafayette March 22 - April 5, 1998)
 - Trail to Battle Ground 4/18/98 (Lafayette, April 5 - 28, 1998)
 - Trail to Battle Ground 4/18/98 (Lafayette, April 5 - 28, 1998)
 - view from the lab of the Department of Chemistry 4/28/98 (Lafayette, April 5 - 28, 1998)
 - Trail to Battle Ground 4/18/98 (Lafayette, April 5 - 28, 1998)
 - Trail to Battle Ground 4/18/98 (Lafayette, April 5 - 28, 1998)
 - Trail to Battle Ground 4/18/98 (Lafayette, April 5 - 28, 1998)
 - Trail to Battle Ground 4/18/98 (Lafayette, April 5 - 28, 1998)
 - Trail to Battle Ground 4/18/98 (Lafayette, April 5 - 28, 1998)
 - Trail to Battle Ground 4/18/98 (Lafayette, April 5 - 28, 1998)
 - Trail to Battle Ground 4/18/98 (Lafayette, April 5 - 28, 1998)
 - Trail to Battle Ground 4/18/98 (Lafayette, April 5 - 28, 1998)
 - West to Lafayette and Ross Hills Park 7/26/98 (Lafayette, July 12 - September 1, 1998)
 - West to Lafayette and Ross Hills Park 7/26/98 (Lafayette, July 12 - September 1, 1998)
 - West to Lafayette and Ross Hills Park 7/26/98 (Lafayette, July 12 - September 1, 1998)
 - West Lafayette, Oct. 26-28 (Lafayette - Knobstone Trail, Indiana, October 25 - 31, 1998)
 - West Lafayette, Oct. 26-28 (Lafayette - Knobstone Trail, Indiana, October 25 - 31, 1998)
 - Morton Community Center in West Lafayette 9/5/98 (Lafayette, September 12 - 29, 1998)
 - 5 - 10 miles west to Lafayette 7/12/98 - Montmorenci (Lafayette, July 12 - September 1, 1998)
 - 5 - 10 miles west to Lafayette 7/12/98 - Montmorenci (Lafayette, July 12 - September 1, 1998)
 - West Lafayette, Oct. 26-28 (Lafayette - Knobstone Trail, Indiana, October 25 - 31, 1998)
 - West Lafayette, Oct. 26-28 (Lafayette - Knobstone Trail, Indiana, October 25 - 31, 1998)
 - Morton Community Center in West Lafayette 9/5/98 (Lafayette, September 12 - 29, 1998)
 - A park near Celery Bog in West Lafayette 10/25/98 (Lafayette - Knobstone Trail, Indiana, October 25 - 31, 1998)
 - Trail along Wabash River 3/28/98 (Lafayette March 22 - April 5, 1998)
 - Trail to Battle Ground 4/4/98 (Lafayette March 22 - April 5, 1998)
 - Trail along Wabash River 3/28/98 (Lafayette March 22 - April 5, 1998)
 - Trail to Battle Ground 4/4/98 (Lafayette March 22 - April 5, 1998)
 - Trail to Battle Ground 4/4/98 (Lafayette March 22 - April 5, 1998)
 - North Salisbury Street 4/5/98 (Lafayette March 22 - April 5, 1998)
 - Trail along Wabash River 3/28/98 (Lafayette March 22 - April 5, 1998)
 - Trail to Battle Ground 4/4/98 (Lafayette March 22 - April 5, 1998)
 - Trail to Battle Ground 4/4/98 (Lafayette March 22 - April 5, 1998)
 - Trail to Battle Ground 4/4/98 (Lafayette March 22 - April 5, 1998)
 - Trail to Battle Ground 4/4/98 (Lafayette March 22 - April 5, 1998)
 - Trail to Battle Ground 4/4/98 (Lafayette March 22 - April 5, 1998)
 - Trail along Wabash River 3/28/98 (Lafayette March 22 - April 5, 1998)
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