 Inspecting a creek in Potholes Park (Fall Creek Gorge) by international students of Purdue University. Near Pine Village, Indiana, June 5, 1999.
 International students of Purdue University walking over rapids and tubs of a creek in Potholes Park (Fall Creek Gorge) near Pine Village. Indiana, June 5, 1999.
 A trip to Mount Baldy on Lake Michigan in Indiana with international students, July 17, 1999.
 Potholes Park, Fall Creek Gorge. The trip was organized by Purdue University International Center. Near Pine Village, Indiana, June 5, 1999.
 Tippecanoe River (after a drought) north from Lafayette, Indiana. September 18, 1999.
 Overcoming a tub in a creek in Potholes Park (Fall Creek Gorge) by an international student of Purdue University. Near Pine Village, Indiana, June 5, 1999.
 Tippecanoe River north from Lafayette, Indiana. Shallow places appeared after a drought. September 18, 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.
 Fountain of Purdue University Mall. West Lafayette, Indiana, September 21, 1999.
 Founders Park in Purdue University. West Lafayette, Indiana, September 21, 1999.
 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.
 View of Purdue University Mall from the second floor of Electrical Engineering Building. West Lafayette, Indiana, September 21, 1999.
 Students walking between Engineering Center and Engineering Laboratories. Purdue University, West Lafayette IN, January 6, 1999.
 Purdue University Mall. West Lafayette, Indiana, October 10, 1999.
 View of corn fields behind a fence of Tippecanoe Battlefield park along Harrison Road. Indiana, September 11, 1999.
 A lecture of Sabre Kais Phase transitions and critical phenomena for electronic structure of atoms and molecules (?) at internal meeting of the quantum chemistry group of Purdue University. West Lafayette, Indiana, September 21, 1999.
 Remains of a fan (?) and books after a fire in the theoretical chemistry lab of Purdue University at Memorial Day. West Lafayette, Indiana, June 1, 1999.
 A burned desk in the theoretical chemistry lab (there was a coffee pot?) after a fire at Memorial Day. Purdue University, West Lafayette, Indiana, June 1, 1999.
 Burned part of the theoretical chemistry lab (there was a bookshelf) after a fire at Memorial Day. Purdue University, West Lafayette, Indiana, June 1, 1999.
 Pablo Nigra, Qicun Shi, Stephen Belair, Imad Ladadwa and Ricardo A. Sauerwein ready to listen a lecture of S. Kais at internal meeting of the quantum chemistry group of Purdue University. West Lafayette, Indiana, September 21, 1999.
 A grey squirrel gnawing a nut on its home range near Mechanical Engineering Building. Purdue University, West Lafayette, Indiana, October 1, 1999.
 Oaks in Tippecanoe Battlefield Park. Indiana, November 26, 1999
 Burnett Creek down Tippecanoe Battlefield Park. Indiana, November 26, 1999
 Pioneer Herb Garden near Tippecanoe Battlefield Park. Indiana, November 26, 1999
 Fountain near John Purdue grave, Purdue University, West Lafayette IN, January 3, 1999.
 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.
 Quantum chemistry group of Purdue University (Qicun Shi, Pablo Nigra, Jack Yang, Stephen Belair, Sabre Kais, Aaron Stanton) in front of "King Buffet" restaurant after $8 seafood dinner. Lafayette, Indiana, April 30, 1999.
 Qicun Shi explains to Sabre Kais correlation effects in scattering of an electron on lithium-like atom with a variable nuclear charge slightly above two after a lecture of Imad Ladadwa about ionization cross sections at internal meeting of the quantum chemistry group. Purdue University, West Lafayette, Indiana, October 1, 1999.
 Sabre Kais and Qicun Shi discuss electronic shell structure and correlations in scattering of an electron on lithium-like atom with a variable nuclear charge slightly above two after a lecture of Imad Ladadwa about ionization cross sections at internal meeting of the quantum chemistry group. Purdue University, West Lafayette, Indiana, October 1, 1999.
 Davis Ferry Bridge across Wabash River north from Lafayette. Indiana, September 11, 1999.
 Drying forest at Heritage Trail along Wabash River north from Lafayette. Indiana, September 11, 1999.
 Forest along Wabash River in Ross Hills Park, 6 miles west from Lafayette, Indiana, September 25, 1999.
 A water snake and big shells in Wabash River in Ross Hills Park, 6 miles west from Lafayette, Indiana, September 25, 1999.
 Fountain of Purdue University Mall. West Lafayette, Indiana, March 10, 1998.
 Purdue University Hall and Recitation Building. West Lafayette, Indiana, March 10, 1998.
 Purdue University Mall and Bell Tower. West Lafayette, Indiana, February 27, 1998.
 Purdue University Mall. West Lafayette IN, January 3, 1999.
 - Christmas party for international students 12/5/97 (Dallas, December 1 - 6, 1997)
 - 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)
 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)
 - 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, Administration Hall. West Lafayette IN, January 3, 1999.
 - Purdue University 1/3/99 (West Lafayette, November 26, 1998 - January 3, 1999)
 Founders Park at Purdue University, West Lafayette IN, 20 June, 1999.
 Wetherill Laboratory of Chemistry at Purdue University. West Lafayette IN, January 3, 1999.
 Wetherill Laboratory of Chemistry at Purdue University, West Lafayette IN, 20 June, 1999.
 Brown Laboratories of Chemistry at Purdue University, West Lafayette IN, 21 June, 1999.
 Blue racer snake (Coluber constrictor foxi) swimming in Wabash River in Ross Hills Park, 6 miles west from Lafayette, Indiana, September 25, 1999.
 Frozen ornamental cabbage at Centennial Mall. Purdue University, West Lafayette IN, January 6, 1999.
 View of Nuclear Engineering Building from the lab at the Dept. of Chemistry. Purdue University, West Lafayette IN, January 6, 1999.
 Heron island during a drought on Wabash River north from Lafayette (compare with another picture of Heron Island at winter). Indiana, September 11, 1999.
 View of Wabash River from a trail to Fort Ouiatenon. Indiana, November 13, 1999
 Pablo Serra and Huan Pablo Neirotti at a dinner in a restaurant near Purdue University. West Lafayette, Indiana, February 26, 1998.
 Tippecanoe Battlefield, north from Lafayette. Indiana, January 31, 1998.
 Jack Yang, Stephen Belair and Pablo Nigra in the lab of the Department of Chemistry (a little white fan later 5/31/99 caused a fire). Purdue University, West Lafayette IN, January 6, 1999.
 A trail along Wabash River at Ross Hills Park 5 miles west from Lafayette. Indiana, October 30, 1999.
 A meadow near Wabash River at Ross Hills Park 5 miles west from Lafayette. Indiana, October 30, 1999.
 Tippecanoe County Amphitheater near Battle Ground, Indiana, February 14, 1998.
 Log Chapel at the University of Notre Dame. South Bend, Indiana, May 21, 1999.
 Fallen sycamore near Wabash River at Ross Hills Park 5 miles west from Lafayette. Indiana, October 30, 1999.
 Tippecanoe Battlefield near Lafayette IN, August 15, 1999.
 A statue at the top of Tippecanoe County Court House. Lafayette, Indiana, January 18, 1998.
 A gate to Tippecanoe Battlefield Park, north from Lafayette. Indiana, January 31, 1998.
 Gen. W. H. Harrison s monument at Tippecanoe Battlefield, north from Lafayette. Indiana, January 31, 1998.
 View of Tippecanoe Courthouse and the downtown from Big Four Depot. Lafayette, Indiana, March 10, 1998.
 Catholic cemetery at the University of Notre Dame. South Bend, Indiana, May 21, 1999.
 A squirrel on a lawn of the University of Notre Dame. South Bend, Indiana, May 21, 1999.
 Catholic cemetery at the University of Notre Dame. South Bend, Indiana, May 21, 1999.
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 - Trip to Harrison-Crawford State Forest, South Indiana, May 15-17 (Indiana and Lafayette, May 15 - 24, 1998)
 Dead forest in a marsh near Wabash River at Ross Hills Park 5 miles west from Lafayette. Indiana, October 30, 1999.
 A park at Tippecanoe Battlefield near Lafayette IN, August 15, 1999.
 View of Tippecanoe Courthouse from Amtrak railroad Station. Lafayette, Indiana, March 10, 1998.
 View of Tippecanoe Courthouse in downtown Lafayette from Amtrak Station. Indiana, January 31, 1998.
 A squirrel near Residence Halls at the University of Notre Dame. South Bend, Indiana, May 21, 1999.
 Harrison s monument at Tippecanoe Battlefield near Lafayette IN, August 15, 1999.
 Weeds at Heritage Trail near Tippecanoe Battlefield IN, August 15, 1999.
 Basilica of the Sacred Heart at a catholic University of Notre Dame. South Bend, Indiana, May 21, 1999.
 Golden Dome (administration building) at the University of Notre Dame. South Bend, Indiana, May 21, 1999.
 History of pioneers of Indiana presented in Adams Mill, with a running water outlet. Indiana, May 15, 1999.
 Tippecanoe County Historical Museum (Moses Fowler House) at 9th Street. Lafayette, Indiana, January 18, 1998.
 A marsh and a meadow near Wabash River in Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 1999.
 A soybean field north from Lafayette, Indiana, September 11, 1999.
 Sunflowers at Heritage Trail near Lafayette, Indiana, September 11, 1999.
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