The rice looking stuff on the log splitter is actually termites. These fell out of a section of firewood as I split it. There were several more cracks in each section filled with termites. At least 4 sections has this many termites, with smaller numbers in some additional sections. Overall it was the largest termite colony I have ever seen. I suspect the tree had come down in Hurricane Fran. Any part laying on the ground was too far gone for wood burning but the main trunk was bridged off the groun and the heartwood was still solid enough to make burning worthwhile.