Dear Listers, Part 2 of the pond scum fireball has been posted. See link below: http://bioenergylists.org/en/pondscum2 An opps on my part, density should read 0.225 g/cm^3 not 0.250 g/cm^3. I will edit that in a few days. Jeff -- Jeff Davis Some where 20 miles south of Lake Erie, USA