• October 27: Dr. David Grimley, “The penultimate (Illinois episode) glaciation in Illinois”

• September 29: Dr. Lindsay McHenry, “The minerals of Olduvai Gorge: reconstructing the volcanic, stratigraphic, and paleoenvironmental record of this classic hominid site”

Refreshments will be served at 5 p.m.

All dates are Thursday; talks will begin at 4:10 p.m. and are held in Harrington Hall Room 217, 845 Elmwood Ave, Oshkosh WI, unless noted otherwise.