 S.-w. side of Purdue Mall, view from Electrical Engineering Building. Purdue University, West Lafayette, Indiana, October 29, 1999.
 Purdue University Mall and Electrical Engineering Building. West Lafayette, Indiana, September 26, 1999.
 Purdue Mall, the fountain, and Hall of Administration, view from Electrical Engineering Building. Purdue University, West Lafayette, Indiana, October 29, 1999.
 A grey squirrel gnawing a nut on its home range near Mechanical Engineering Building. Purdue University, West Lafayette, Indiana, October 1, 1999.
 View of Nuclear Engineering Building from the lab at the Dept. of Chemistry. Purdue University, West Lafayette IN, January 6, 1999.
 Fountain of Purdue University Mall. West Lafayette, Indiana, September 21, 1999.
 Purdue University Mall during afternoon hours. West Lafayette, Indiana, September 21, 1999.
 Purdue University Mall. West Lafayette, Indiana, October 10, 1999.
 Students walking between Engineering Center and Engineering Laboratories. Purdue University, West Lafayette IN, January 6, 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.
 Founders Park in Purdue University. West Lafayette, Indiana, September 21, 1999.
 Fountain of Purdue University Mall. West Lafayette, Indiana, March 10, 1998.
 Purdue University Mall. West Lafayette IN, January 3, 1999.
 Purdue University Mall and Bell Tower. West Lafayette, Indiana, February 27, 1998.
 Purdue University Hall and Recitation Building. West Lafayette, Indiana, March 10, 1998.
 Frozen ornamental cabbage at Centennial Mall. Purdue University, West Lafayette IN, January 6, 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.
 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 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.
 Fountain near John Purdue grave, Purdue University, West Lafayette IN, January 3, 1999.
 View of Indiana Avenue around intersection with Capitol Avenue from the 17th floor of One American Square building. Indianapolis, December 1, 1999.
 Canoe trip on Tippecanoe River with international students of Purdue University. Indiana, September 18, 1999.
 Founders Park at Purdue University, West Lafayette IN, 20 June, 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)
 - 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 Memorial Union from State Street. West Lafayette, Indiana, March 10, 1998.
 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.
 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.
 Wetherill Laboratory of Chemistry at Purdue University. West Lafayette IN, January 3, 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.
 A pasture and a corn field along County Road 500 West west from Lafayette, Indiana, September 25, 1999.
 Happy Hollow Park in West Lafayette, Indiana, September 22, 1999.
 A farm near Division Road west from Lafayette, Indiana, September 25, 1999.
 Soybean field near Road 26 west to Lafayette, Indiana, September 25, 1999.
 A forest near Division Road west from Lafayette, Indiana, September 25, 1999.
 A monarch butterfly at Mascouten Park. West Lafayette, Indiana, September 6, 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.
 Pablo Serra and Huan Pablo Neirotti at a dinner in a restaurant near Purdue University. West Lafayette, Indiana, February 26, 1998.
 A marsh in Ross Hills Park, 6 miles west from Lafayette, Indiana, September 25, 1999.
 A trail in Ross Hills Park, 6 miles west from Lafayette, Indiana, September 25, 1999.
 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.
 Greenbrier and poison ivy on trees in Ross Hills Park, 6 miles west from Lafayette, Indiana, September 25, 1999.
 Forest along Wabash River in Ross Hills Park, 6 miles west from Lafayette, Indiana, September 25, 1999.
 Purdue Memorial Union (student services). West Lafayette, Indiana, February 27, 1998.
 A water snake and big shells in Wabash River in Ross Hills Park, 6 miles west from Lafayette, Indiana, September 25, 1999.
 - 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)
 - Final banquet at Midwest Theoretical Chemistry Conference in Purdue University 5/23/98 (Indiana and Lafayette, May 15 - 24, 1998)
 A mysterious sign on a marble grave of L. Godfrey (died May 22, 1847) on a small cemetery at Kerber Road, 6 miles west from Lafayette, Indiana, September 25, 1999.
 State Street near Chauncey Hill Mall. West Lafayette, Indiana, March 10, 1998.
 Blue racer snake (Coluber constrictor foxi) swimming in Wabash River in Ross Hills Park, 6 miles west from Lafayette, Indiana, September 25, 1999.
 A church at State Street opposite to Chauncey Hill Mall. West Lafayette, Indiana, March 10, 1998.
 - near Agricultural Mall in Purdue campus 4/28/98 (Lafayette, April 5 - 28, 1998)
 Sunflowers at Heritage Trail near Lafayette, Indiana, September 11, 1999.
 A soybean field north from Lafayette, Indiana, September 11, 1999.
 Potholes Park, Fall Creek Gorge. The trip was organized by Purdue University International Center. Near Pine Village, Indiana, June 5, 1999.
 West Lafayette. Indiana, April 30, 1999.
 Celery Bog. West Lafayette, Indiana, May 9, 1999.
 An abandoned (?) house on Ferry Street. Lafayette, Indiana, September 26, 1999.
 Tippecanoe River (after a drought) north from Lafayette, Indiana. September 18, 1999.
 Corn festival in Brookston, north from Lafayette, Indiana. September 18, 1999.
 - 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)
 Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 1999.
 Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 1999.
 Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 1999.
 Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 1999.
 State Road 500, 5 miles west from West Lafayette. Indiana, May 1, 1999.
 Sheridan Road. West Lafayette, Indiana, May 2, 1999.
 Near Hillcrest(?) Road. West Lafayette, Indiana, May 2, 1999.
 Hillcrest Road. West Lafayette, Indiana, May 3, 1999.
 Maywood Drive. West Lafayette, Indiana, May 2, 1999.
 Hillcrest Road. West Lafayette, Indiana, May 3, 1999.
 Garden Street. West Lafayette, Indiana, May 2, 1999.
 Leslie Ct. West Lafayette, Indiana, November 3, 1999.
 Carrolton Boulevard. West Lafayette, Indiana, May 2, 1999.
 Ravinia(?) Road. West Lafayette, Indiana, May 2, 1999.
 Near Hillcrest(?) Road. West Lafayette, Indiana, May 2, 1999.
 A road in Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 1999.
 Greenbrier in Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 1999.
 Abandoned vehicle in Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 1999.
 A road with dogwood in Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 1999.
 Parasite plants in Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 1999.
 Marsh plants and dogwood in Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 1999.
 Yellow flowers on a corn field near State Road 350(?), 5 miles west from West Lafayette. Indiana, May 1, 1999.
 Phloxes and violets in grass of Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 1999.
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