Excellent idea with the formide.
yet another reason to lean toward a form of formic acid(perhaps not regular f a, but a derivitive of it).
taken from
http://en.m.wikipedia.org/wiki/Formic_acid
"chronic effects of formic acid exposure have been documented. Some experiments on bacterial species have demonstrated it to be a mutagen."
I'm going to puzzle over all this tonight and throw up a big post later. That's all for now
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