The Department of Earth Sciences presents the Fall 2005 K. Douglas Nelson Lecture Series, this week featuring Dr. Constanze Weyhenmeyer, Syracuse University. Dr. Weyhenmeyer will speak on "Glacial-Interglacial Climate Change: A "Story" from Groundwater Records and Cave Deposits in the Arabian Peninsula." This lecture will be held on Thursday, September 8, at 4 p.m. in Room 113 Heroy Geology Laboratory. The University community and public are welcome to attend.