Dr. Necat Yýlmaz, Try "Image J" at the National Institutes of Health: http://rsb.info.nih.gov/ij/ Linda Linda Jenkins, HT Clemson University Dept. of Bioengineering Clemson, SC 29634-0905 864.656.5553 http://www.ces.clemson.edu/bio/research/histo/histo.htm