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At 01:34 PM 12/12/2009, David Bradbury wrote:
Because the "ink" of the Vinland Map behaves more like a paint,
sitting on top of the parchment, chemicals in the parchment should
be of very limited significance when analysing the ink.
David Bradbury
Whitehaven, England
Joel Kovarsky wrote:
Given my level of ignorance, exactly what would the presence of
tannic acid prove, since it is a ubiquitous product of the
breakdown of vegetable tannins, used in various methods (and for
various reasons) for the preparation of parchment
(http://www.sca.org.au/scribe/articles/parchment.htm). I am losing
the forest for the trees here, and I recognize that this is
something of a complex subject.
I have also written off-list to Joel to try to help clarify this.
Jim
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