Yesterday, I went to the Wakayama City Museum (JAPANESE only) for taking residue samples from stone artefacts.
The museum will conduct the special exhibition in 2010 about human lives and their tools in the Jomon period, and this exhibition will show stone tools found from the Jomon sites in Wakayama Prefecture. I took samples from these stone tools for starch residue analysis.
Coming around the end of a fiscal year in 2009, residue samples were taken from 6 stones (mainly hammer-stones), which were less than my past surveys.
I'm expecting the existence and the large number of starch grains on these stones.