This website comes at the urging of 1996 P4 class who all agreed I have some of the worst handwriting on the planet- if nothing else I try to be responsive to your needs. The original course material was compiled by Alice M. Clark and Charles D. Hufford; their advice and vision is appreciated. Discussions about website capabilities with Noel Wilkins and Dave McCaffrey were very helpful. Much gratitude to David Ancell, David Berry, Dawn Hyde, Jeffrey Ray and Michael Warren for providing typed notes that have been incorporated here. Marilyn Bush provided a PBL document from the PHCL342 course for which I am extremely grateful. In addition, Kathy Gates, Ravi Mantena, Haibo Wang, Troy Smillie and the UM Webproject provided valuable advice on the development of this learning resource. Many of the graphics on this website have been downloaded from public domain files or sites that allow shared use for education (thanx to Cells alive and NASA for the tremendous photos); if you know of any files used here that might violate copyright laws please let me know.