 Fall colors in Happy Hollow Park. West Lafayette, Indiana, October 27, 1999.
 Late fall in Happy Hollow Park. West Lafayette, Indiana, October 27, 1999.
 Happy Hollow Park. West Lafayette, Indiana, October 21, 1999.
 Happy Hollow Park. West Lafayette, Indiana, October 21, 1999.
 Happy Hollow Park. West Lafayette, Indiana, October 21, 1999.
 Happy Hollow Park in West Lafayette, Indiana, October 10, 1999.
 A trail in Happy Hollow Park. West Lafayette, Indiana, October 27, 1999.
 A trail in Happy Hollow Park. West Lafayette, Indiana, October 21, 1999.
 Oaks in Happy Hollow Park. West Lafayette, Indiana, October 27, 1999.
 A trail in Happy Hollow Park. West Lafayette, Indiana, October 21, 1999.
 Slopes of Happy Hollow Park in West Lafayette, Indiana, October 10, 1999.
 Bottom of Happy Hollow Park. West Lafayette, Indiana, October 27, 1999.
 Maple crowns in Happy Hollow Park. West Lafayette, Indiana, October 27, 1999.
 Soil erosion in Happy Hollow Park. West Lafayette, Indiana, October 27, 1999.
 Happy Hollow Park. West Lafayette, Indiana, May 5, 1999.
 Happy Hollow Park in West Lafayette, Indiana, April 30, 1999.
 Happy Hollow Park in West Lafayette, Indiana, September 22, 1999.
 - Happy Hollow Park in West Lafayette 12/15/99 (Chicago, Ann Arbor MI, Lafayette IN, December 4 - 15, 1999)
 - Happy Hollow Park in West Lafayette 12/24/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Happy Hollow Park in West Lafayette 12/24/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Happy Hollow Park in West Lafayette 12/24/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Happy Hollow Park in West Lafayette 12/24/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Happy Hollow Park in West Lafayette 12/24/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 - Happy Hollow Park in West Lafayette 12/24/99 (West Lafayette IN, December 18, 1999 - January 1, 2000)
 A spider holding a white ball on a hollow log at Heritage Trail near Battle Ground, north from Lafayette. Indiana, September 11, 1999.
 Leslie Avenue. West Lafayette, Indiana, October 30, 1999.
 Garden (?) Street. West Lafayette, Indiana, October 30, 1999.
 Northridge Drive. West Lafayette, Indiana, October 30, 1999.
 Northridge Drive. West Lafayette, Indiana, October 30, 1999.
 Jefferson Street. West Lafayette, Indiana, October 30, 1999.
 Elmwood (?) Drive. West Lafayette, Indiana, October 30, 1999.
 Ravinia (?) Road. West Lafayette, Indiana, October 30, 1999.
 Ravinia (?) Road. West Lafayette, Indiana, October 30, 1999.
 Ravinia Road. West Lafayette, Indiana, October 30, 1999.
 Ravinia Road. West Lafayette, Indiana, October 30, 1999.
 Sheridan Drive. West Lafayette, Indiana, October 30, 1999.
 Ridgewood (?) Road. West Lafayette, Indiana, October 30, 1999.
 Summit Drive. West Lafayette, Indiana, October 30, 1999.
 Ravinia Road. West Lafayette, Indiana, October 30, 1999.
 Ravinia Road. West Lafayette, Indiana, October 30, 1999.
 Northridge (?) Drive. West Lafayette, Indiana, October 30, 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.
 Purdue University Mall. West Lafayette, Indiana, October 10, 1999.
 Fallen sycamore near Wabash River at Ross Hills Park 5 miles west from Lafayette. Indiana, October 30, 1999.
 Garden Street near Northwestern Avenue. West Lafayette, Indiana, October 29, 1999.
 Corner of Hillcrest and Ravinia Road. West Lafayette, Indiana, October 30, 1999.
 Garden Street before local elections. West Lafayette, Indiana, October 28, 1999.
 Garden Street near Northwestern Avenue. West Lafayette, Indiana, October 30, 1999.
 Salisbury Street near Parkridge Drive. West Lafayette, Indiana, October 28, 1999.
 Intersection of Ridgewood and Ravinia Road. West Lafayette, Indiana, October 30, 1999.
 Qicun Shi at a party in S. Kais home. West Lafayette, Indiana, 3 p.m. October 31, 1999.
 Dead forest in a marsh near Wabash River at Ross Hills Park 5 miles west from Lafayette. Indiana, October 30, 1999.
 Corner of Garden Street and Elmwood Drive. West Lafayette, Indiana, October 30, 1999.
 Intersection of Garden Street with Summit Drive. West Lafayette, Indiana, October 30, 1999.
 A squirrel on an electric pole at Garden Street. West Lafayette, Indiana, October 21, 1999.
 Corn in a field near Otterbein on C.R. 1200 East 6 miles west from Lafayette. Indiana, October 30, 1999.
 Corn field near Otterbein on C.R. 1200 East 6 miles west from Lafayette. Indiana, October 30, 1999.
 A barn opposite to Harrison High School, 2 miles north from West Lafayette. Indiana, October 16, 1999.
 Imad Ladadwa, Stephen Belair and Ricardo A. Sauerwein at a party in S. Kais home. West Lafayette, Indiana, 3 p.m. October 31, 1999.
 A grey squirrel gnawing a nut on its home range near Mechanical Engineering Building. Purdue University, West Lafayette, Indiana, October 1, 1999.
 Unidentified construction in Celery Bog Park. West Lafayette, Indiana, May 9, 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.
 Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 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.
 Parasite plants 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.
 Marsh plants and dogwood in Ross Hills Park, 7 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.
 C.R. 500 North 2 miles north from West Lafayette. Indiana, October 30, 1999.
 C.R. 500 North 2 miles north from West Lafayette. Indiana, October 30, 1999.
 Founders Park in Purdue University. West Lafayette, Indiana, September 21, 1999.
 A monarch butterfly at Mascouten Park. West Lafayette, Indiana, September 6, 1999.
 A marsh and a meadow near Wabash River in Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 1999.
 Pablo Nigra and Sabre Kais at a party in S. Kais home. West Lafayette, Indiana, 3 p.m. October 31, 1999.
 Pablo Nigra and Sabre Kais at a party in S. Kais home. West Lafayette, Indiana, 3 p.m. October 31, 1999.
 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.
 West Lafayette. Indiana, April 30, 1999.
 Celery Bog. West Lafayette, Indiana, May 9, 1999.
 S.-w. side of Purdue Mall, view from Electrical Engineering Building. Purdue University, West Lafayette, Indiana, October 29, 1999.
 - A park near Celery Bog in West Lafayette 10/25/98 (Lafayette - Knobstone Trail, Indiana, October 25 - 31, 1998)
 Maywood Drive. West Lafayette, Indiana, May 2, 1999.
 Leslie Ct. West Lafayette, Indiana, November 3, 1999.
 Hillcrest Road. West Lafayette, Indiana, May 3, 1999.
 Garden Street. West Lafayette, Indiana, May 2, 1999.
 Ravinia(?) Road. West Lafayette, Indiana, May 2, 1999.
 Carrolton Boulevard. West Lafayette, Indiana, May 2, 1999.
 Sheridan Road. West Lafayette, Indiana, May 2, 1999.
 Near Hillcrest(?) Road. West Lafayette, Indiana, May 2, 1999.
 Near Hillcrest(?) Road. West Lafayette, Indiana, May 2, 1999.
 Hillcrest Road. West Lafayette, Indiana, May 3, 1999.
 Large colonies of May apples on a semishaded woodland opening near Deer Pass in Ross Hills Park, 7 miles west from West Lafayette. Indiana, May 1, 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.
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